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Finding the Fourth Proportional to 87,556.80, 131,286.60 and 34,906.80

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Solution

The fourth proportional to 87,556.80, 131,286.60 and 34,906.80 is: 52,340.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,556.80 : 131,286.60 = 34,906.80 : x
  2. Step 2: Convert to fraction form
    87,556.80/131,286.60 = 34,906.80/x
  3. Step 3: Cross multiply
    87,556.80x = 131,286.60 × 34,906.80
  4. Step 4: Simplify right side
    87,556.80x = 4,582,795,088.88
  5. Step 5: Solve for x
    x = 4,582,795,088.88/87,556.80
  6. Step 6: Final answer
    x = 52,340.82

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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.