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Finding the Fourth Proportional to 131,788.32, 197,682.44 and 75,993.08

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Solution

The fourth proportional to 131,788.32, 197,682.44 and 75,993.08 is: 113,989.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,788.32 : 197,682.44 = 75,993.08 : x
  2. Step 2: Convert to fraction form
    131,788.32/197,682.44 = 75,993.08/x
  3. Step 3: Cross multiply
    131,788.32x = 197,682.44 × 75,993.08
  4. Step 4: Simplify right side
    131,788.32x = 15,022,497,477.52
  5. Step 5: Solve for x
    x = 15,022,497,477.52/131,788.32
  6. Step 6: Final answer
    x = 113,989.60

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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.