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Finding the Fourth Proportional to 87,879.88, 131,842.29 and 25,550.38

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Solution

The fourth proportional to 87,879.88, 131,842.29 and 25,550.38 is: 38,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,879.88 : 131,842.29 = 25,550.38 : x
  2. Step 2: Convert to fraction form
    87,879.88/131,842.29 = 25,550.38/x
  3. Step 3: Cross multiply
    87,879.88x = 131,842.29 × 25,550.38
  4. Step 4: Simplify right side
    87,879.88x = 3,368,620,609.57
  5. Step 5: Solve for x
    x = 3,368,620,609.57/87,879.88
  6. Step 6: Final answer
    x = 38,332.10

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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.