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Finding the Fourth Proportional to 73,177.85, 109,691.28 and 35,691.60

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Solution

The fourth proportional to 73,177.85, 109,691.28 and 35,691.60 is: 53,500.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,177.85 : 109,691.28 = 35,691.60 : x
  2. Step 2: Convert to fraction form
    73,177.85/109,691.28 = 35,691.60/x
  3. Step 3: Cross multiply
    73,177.85x = 109,691.28 × 35,691.60
  4. Step 4: Simplify right side
    73,177.85x = 3,915,057,700.59
  5. Step 5: Solve for x
    x = 3,915,057,700.59/73,177.85
  6. Step 6: Final answer
    x = 53,500.59

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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.