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Finding the Fourth Proportional to 87,797.92, 131,717.84 and 28,633.64

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Solution

The fourth proportional to 87,797.92, 131,717.84 and 28,633.64 is: 42,957.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,797.92 : 131,717.84 = 28,633.64 : x
  2. Step 2: Convert to fraction form
    87,797.92/131,717.84 = 28,633.64/x
  3. Step 3: Cross multiply
    87,797.92x = 131,717.84 × 28,633.64
  4. Step 4: Simplify right side
    87,797.92x = 3,771,561,212.14
  5. Step 5: Solve for x
    x = 3,771,561,212.14/87,797.92
  6. Step 6: Final answer
    x = 42,957.30

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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.