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Finding the Fourth Proportional to 138,468.68, 207,614.27 and 58,484.97

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Solution

The fourth proportional to 138,468.68, 207,614.27 and 58,484.97 is: 87,689.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,468.68 : 207,614.27 = 58,484.97 : x
  2. Step 2: Convert to fraction form
    138,468.68/207,614.27 = 58,484.97/x
  3. Step 3: Cross multiply
    138,468.68x = 207,614.27 × 58,484.97
  4. Step 4: Simplify right side
    138,468.68x = 12,142,314,060.10
  5. Step 5: Solve for x
    x = 12,142,314,060.10/138,468.68
  6. Step 6: Final answer
    x = 87,689.97

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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.