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Finding the Fourth Proportional to 87,473.96, 120,772.16 and 67,295.24

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Solution

The fourth proportional to 87,473.96, 120,772.16 and 67,295.24 is: 92,912.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,473.96 : 120,772.16 = 67,295.24 : x
  2. Step 2: Convert to fraction form
    87,473.96/120,772.16 = 67,295.24/x
  3. Step 3: Cross multiply
    87,473.96x = 120,772.16 × 67,295.24
  4. Step 4: Simplify right side
    87,473.96x = 8,127,391,635.97
  5. Step 5: Solve for x
    x = 8,127,391,635.97/87,473.96
  6. Step 6: Final answer
    x = 92,912.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.