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Finding the Fourth Proportional to 71,545.28, 106,835.98 and 58,423.28

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Solution

The fourth proportional to 71,545.28, 106,835.98 and 58,423.28 is: 87,241.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,545.28 : 106,835.98 = 58,423.28 : x
  2. Step 2: Convert to fraction form
    71,545.28/106,835.98 = 58,423.28/x
  3. Step 3: Cross multiply
    71,545.28x = 106,835.98 × 58,423.28
  4. Step 4: Simplify right side
    71,545.28x = 6,241,708,373.61
  5. Step 5: Solve for x
    x = 6,241,708,373.61/71,545.28
  6. Step 6: Final answer
    x = 87,241.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.