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Finding the Fourth Proportional to 87,662.40, 131,493.60 and 32,251.20

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Solution

The fourth proportional to 87,662.40, 131,493.60 and 32,251.20 is: 48,376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,662.40 : 131,493.60 = 32,251.20 : x
  2. Step 2: Convert to fraction form
    87,662.40/131,493.60 = 32,251.20/x
  3. Step 3: Cross multiply
    87,662.40x = 131,493.60 × 32,251.20
  4. Step 4: Simplify right side
    87,662.40x = 4,240,826,392.32
  5. Step 5: Solve for x
    x = 4,240,826,392.32/87,662.40
  6. Step 6: Final answer
    x = 48,376.80

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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.