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Finding the Fourth Proportional to 87,594.32, 120,889.80 and 49,862.48

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Solution

The fourth proportional to 87,594.32, 120,889.80 and 49,862.48 is: 68,815.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,594.32 : 120,889.80 = 49,862.48 : x
  2. Step 2: Convert to fraction form
    87,594.32/120,889.80 = 49,862.48/x
  3. Step 3: Cross multiply
    87,594.32x = 120,889.80 × 49,862.48
  4. Step 4: Simplify right side
    87,594.32x = 6,027,865,234.70
  5. Step 5: Solve for x
    x = 6,027,865,234.70/87,594.32
  6. Step 6: Final answer
    x = 68,815.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.