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Finding the Fourth Proportional to 87,892.40, 131,806.20 and 43,504.40

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Solution

The fourth proportional to 87,892.40, 131,806.20 and 43,504.40 is: 65,240.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,892.40 : 131,806.20 = 43,504.40 : x
  2. Step 2: Convert to fraction form
    87,892.40/131,806.20 = 43,504.40/x
  3. Step 3: Cross multiply
    87,892.40x = 131,806.20 × 43,504.40
  4. Step 4: Simplify right side
    87,892.40x = 5,734,149,647.28
  5. Step 5: Solve for x
    x = 5,734,149,647.28/87,892.40
  6. Step 6: Final answer
    x = 65,240.56

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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.