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Finding the Fourth Proportional to 75,691.56, 104,449.76 and 43,854.96

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Solution

The fourth proportional to 75,691.56, 104,449.76 and 43,854.96 is: 60,517.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,691.56 : 104,449.76 = 43,854.96 : x
  2. Step 2: Convert to fraction form
    75,691.56/104,449.76 = 43,854.96/x
  3. Step 3: Cross multiply
    75,691.56x = 104,449.76 × 43,854.96
  4. Step 4: Simplify right side
    75,691.56x = 4,580,640,046.81
  5. Step 5: Solve for x
    x = 4,580,640,046.81/75,691.56
  6. Step 6: Final answer
    x = 60,517.18

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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.