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Finding the Fourth Proportional to 84,672.74, 126,983.18 and 58,545.38

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Solution

The fourth proportional to 84,672.74, 126,983.18 and 58,545.38 is: 87,800.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,672.74 : 126,983.18 = 58,545.38 : x
  2. Step 2: Convert to fraction form
    84,672.74/126,983.18 = 58,545.38/x
  3. Step 3: Cross multiply
    84,672.74x = 126,983.18 × 58,545.38
  4. Step 4: Simplify right side
    84,672.74x = 7,434,278,526.71
  5. Step 5: Solve for x
    x = 7,434,278,526.71/84,672.74
  6. Step 6: Final answer
    x = 87,800.14

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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.