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Finding the Fourth Proportional to 87,863.20, 131,794.80 and 22,199.20

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Solution

The fourth proportional to 87,863.20, 131,794.80 and 22,199.20 is: 33,298.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,863.20 : 131,794.80 = 22,199.20 : x
  2. Step 2: Convert to fraction form
    87,863.20/131,794.80 = 22,199.20/x
  3. Step 3: Cross multiply
    87,863.20x = 131,794.80 × 22,199.20
  4. Step 4: Simplify right side
    87,863.20x = 2,925,739,124.16
  5. Step 5: Solve for x
    x = 2,925,739,124.16/87,863.20
  6. Step 6: Final answer
    x = 33,298.80

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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.