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Finding the Fourth Proportional to 87,362.32, 131,020.80 and 25,018.24

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Solution

The fourth proportional to 87,362.32, 131,020.80 and 25,018.24 is: 37,520.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,362.32 : 131,020.80 = 25,018.24 : x
  2. Step 2: Convert to fraction form
    87,362.32/131,020.80 = 25,018.24/x
  3. Step 3: Cross multiply
    87,362.32x = 131,020.80 × 25,018.24
  4. Step 4: Simplify right side
    87,362.32x = 3,277,909,819.39
  5. Step 5: Solve for x
    x = 3,277,909,819.39/87,362.32
  6. Step 6: Final answer
    x = 37,520.87

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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.