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Finding the Fourth Proportional to 131,262.60, 196,893.90 and 48,145.80

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Solution

The fourth proportional to 131,262.60, 196,893.90 and 48,145.80 is: 72,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,262.60 : 196,893.90 = 48,145.80 : x
  2. Step 2: Convert to fraction form
    131,262.60/196,893.90 = 48,145.80/x
  3. Step 3: Cross multiply
    131,262.60x = 196,893.90 × 48,145.80
  4. Step 4: Simplify right side
    131,262.60x = 9,479,614,330.62
  5. Step 5: Solve for x
    x = 9,479,614,330.62/131,262.60
  6. Step 6: Final answer
    x = 72,218.70

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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.