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Finding the Fourth Proportional to 71,660.60, 107,537.73 and 27,287.79

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Solution

The fourth proportional to 71,660.60, 107,537.73 and 27,287.79 is: 40,949.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,660.60 : 107,537.73 = 27,287.79 : x
  2. Step 2: Convert to fraction form
    71,660.60/107,537.73 = 27,287.79/x
  3. Step 3: Cross multiply
    71,660.60x = 107,537.73 × 27,287.79
  4. Step 4: Simplify right side
    71,660.60x = 2,934,466,487.72
  5. Step 5: Solve for x
    x = 2,934,466,487.72/71,660.60
  6. Step 6: Final answer
    x = 40,949.51

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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.