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Finding the Fourth Proportional to 387,691.48, 581,299.14 and 150,757.96

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Solution

The fourth proportional to 387,691.48, 581,299.14 and 150,757.96 is: 226,044.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,691.48 : 581,299.14 = 150,757.96 : x
  2. Step 2: Convert to fraction form
    387,691.48/581,299.14 = 150,757.96/x
  3. Step 3: Cross multiply
    387,691.48x = 581,299.14 × 150,757.96
  4. Step 4: Simplify right side
    387,691.48x = 87,635,472,496.15
  5. Step 5: Solve for x
    x = 87,635,472,496.15/387,691.48
  6. Step 6: Final answer
    x = 226,044.36

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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.