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Finding the Fourth Proportional to 87,960.84, 132,012.54 and 43,585.80

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Solution

The fourth proportional to 87,960.84, 132,012.54 and 43,585.80 is: 65,414.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,960.84 : 132,012.54 = 43,585.80 : x
  2. Step 2: Convert to fraction form
    87,960.84/132,012.54 = 43,585.80/x
  3. Step 3: Cross multiply
    87,960.84x = 132,012.54 × 43,585.80
  4. Step 4: Simplify right side
    87,960.84x = 5,753,872,165.93
  5. Step 5: Solve for x
    x = 5,753,872,165.93/87,960.84
  6. Step 6: Final answer
    x = 65,414.02

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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.