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Finding the Fourth Proportional to 83,472.53, 125,373.44 and 71,722.27

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Solution

The fourth proportional to 83,472.53, 125,373.44 and 71,722.27 is: 107,724.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,472.53 : 125,373.44 = 71,722.27 : x
  2. Step 2: Convert to fraction form
    83,472.53/125,373.44 = 71,722.27/x
  3. Step 3: Cross multiply
    83,472.53x = 125,373.44 × 71,722.27
  4. Step 4: Simplify right side
    83,472.53x = 8,992,067,042.46
  5. Step 5: Solve for x
    x = 8,992,067,042.46/83,472.53
  6. Step 6: Final answer
    x = 107,724.86

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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.