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Finding the Fourth Proportional to 87,908.80, 131,866.80 and 25,579.30

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Solution

The fourth proportional to 87,908.80, 131,866.80 and 25,579.30 is: 38,370.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,908.80 : 131,866.80 = 25,579.30 : x
  2. Step 2: Convert to fraction form
    87,908.80/131,866.80 = 25,579.30/x
  3. Step 3: Cross multiply
    87,908.80x = 131,866.80 × 25,579.30
  4. Step 4: Simplify right side
    87,908.80x = 3,373,060,437.24
  5. Step 5: Solve for x
    x = 3,373,060,437.24/87,908.80
  6. Step 6: Final answer
    x = 38,370.00

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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.