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Finding the Fourth Proportional to 101,871.74, 152,807.47 and 38,691.74

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Solution

The fourth proportional to 101,871.74, 152,807.47 and 38,691.74 is: 58,037.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,871.74 : 152,807.47 = 38,691.74 : x
  2. Step 2: Convert to fraction form
    101,871.74/152,807.47 = 38,691.74/x
  3. Step 3: Cross multiply
    101,871.74x = 152,807.47 × 38,691.74
  4. Step 4: Simplify right side
    101,871.74x = 5,912,386,899.30
  5. Step 5: Solve for x
    x = 5,912,386,899.30/101,871.74
  6. Step 6: Final answer
    x = 58,037.56

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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.