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Finding the Fourth Proportional to 87,906.60, 131,758.72 and 43,562.48

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Solution

The fourth proportional to 87,906.60, 131,758.72 and 43,562.48 is: 65,293.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,906.60 : 131,758.72 = 43,562.48 : x
  2. Step 2: Convert to fraction form
    87,906.60/131,758.72 = 43,562.48/x
  3. Step 3: Cross multiply
    87,906.60x = 131,758.72 × 43,562.48
  4. Step 4: Simplify right side
    87,906.60x = 5,739,735,837.13
  5. Step 5: Solve for x
    x = 5,739,735,837.13/87,906.60
  6. Step 6: Final answer
    x = 65,293.57

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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.