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Finding the Fourth Proportional to 113,073.38, 169,687.82 and 39,201.38

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Solution

The fourth proportional to 113,073.38, 169,687.82 and 39,201.38 is: 58,829.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,073.38 : 169,687.82 = 39,201.38 : x
  2. Step 2: Convert to fraction form
    113,073.38/169,687.82 = 39,201.38/x
  3. Step 3: Cross multiply
    113,073.38x = 169,687.82 × 39,201.38
  4. Step 4: Simplify right side
    113,073.38x = 6,651,995,962.76
  5. Step 5: Solve for x
    x = 6,651,995,962.76/113,073.38
  6. Step 6: Final answer
    x = 58,829.02

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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.