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Finding the Fourth Proportional to 83,472.72, 125,042.16 and 50,174.72

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Solution

The fourth proportional to 83,472.72, 125,042.16 and 50,174.72 is: 75,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,472.72 : 125,042.16 = 50,174.72 : x
  2. Step 2: Convert to fraction form
    83,472.72/125,042.16 = 50,174.72/x
  3. Step 3: Cross multiply
    83,472.72x = 125,042.16 × 50,174.72
  4. Step 4: Simplify right side
    83,472.72x = 6,273,955,366.20
  5. Step 5: Solve for x
    x = 6,273,955,366.20/83,472.72
  6. Step 6: Final answer
    x = 75,161.75

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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.