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Finding the Fourth Proportional to 138,079.55, 207,117.22 and 62,124.44

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Solution

The fourth proportional to 138,079.55, 207,117.22 and 62,124.44 is: 93,185.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,079.55 : 207,117.22 = 62,124.44 : x
  2. Step 2: Convert to fraction form
    138,079.55/207,117.22 = 62,124.44/x
  3. Step 3: Cross multiply
    138,079.55x = 207,117.22 × 62,124.44
  4. Step 4: Simplify right side
    138,079.55x = 12,867,041,306.86
  5. Step 5: Solve for x
    x = 12,867,041,306.86/138,079.55
  6. Step 6: Final answer
    x = 93,185.71

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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.