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Finding the Fourth Proportional to 80,257.65, 110,759.15 and 43,961.66

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Solution

The fourth proportional to 80,257.65, 110,759.15 and 43,961.66 is: 60,669.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,257.65 : 110,759.15 = 43,961.66 : x
  2. Step 2: Convert to fraction form
    80,257.65/110,759.15 = 43,961.66/x
  3. Step 3: Cross multiply
    80,257.65x = 110,759.15 × 43,961.66
  4. Step 4: Simplify right side
    80,257.65x = 4,869,155,650.30
  5. Step 5: Solve for x
    x = 4,869,155,650.30/80,257.65
  6. Step 6: Final answer
    x = 60,669.05

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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.