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Finding the Fourth Proportional to 131,907,647,998.80, 197,861,471,998.20 and 131,907,647,998.80

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Solution

The fourth proportional to 131,907,647,998.80, 197,861,471,998.20 and 131,907,647,998.80 is: 197,861,471,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,907,647,998.80 : 197,861,471,998.20 = 131,907,647,998.80 : x
  2. Step 2: Convert to fraction form
    131,907,647,998.80/197,861,471,998.20 = 131,907,647,998.80/x
  3. Step 3: Cross multiply
    131,907,647,998.80x = 197,861,471,998.20 × 131,907,647,998.80
  4. Step 4: Simplify right side
    131,907,647,998.80x = 26,099,441,400,862,990,139,392
  5. Step 5: Solve for x
    x = 26,099,441,400,862,990,139,392/131,907,647,998.80
  6. Step 6: Final answer
    x = 197,861,471,998.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.