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Finding the Fourth Proportional to 71,062.35, 106,660.50 and 52,285.13

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Solution

The fourth proportional to 71,062.35, 106,660.50 and 52,285.13 is: 78,476.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,062.35 : 106,660.50 = 52,285.13 : x
  2. Step 2: Convert to fraction form
    71,062.35/106,660.50 = 52,285.13/x
  3. Step 3: Cross multiply
    71,062.35x = 106,660.50 × 52,285.13
  4. Step 4: Simplify right side
    71,062.35x = 5,576,757,778.97
  5. Step 5: Solve for x
    x = 5,576,757,778.97/71,062.35
  6. Step 6: Final answer
    x = 78,476.97

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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.