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Finding the Fourth Proportional to 87,859.30, 131,797.04 and 28,695.28

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Solution

The fourth proportional to 87,859.30, 131,797.04 and 28,695.28 is: 43,045.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,859.30 : 131,797.04 = 28,695.28 : x
  2. Step 2: Convert to fraction form
    87,859.30/131,797.04 = 28,695.28/x
  3. Step 3: Cross multiply
    87,859.30x = 131,797.04 × 28,695.28
  4. Step 4: Simplify right side
    87,859.30x = 3,781,952,965.97
  5. Step 5: Solve for x
    x = 3,781,952,965.97/87,859.30
  6. Step 6: Final answer
    x = 43,045.56

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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.