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Finding the Fourth Proportional to 79,551.53, 109,781.52 and 43,743.85

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Solution

The fourth proportional to 79,551.53, 109,781.52 and 43,743.85 is: 60,366.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,551.53 : 109,781.52 = 43,743.85 : x
  2. Step 2: Convert to fraction form
    79,551.53/109,781.52 = 43,743.85/x
  3. Step 3: Cross multiply
    79,551.53x = 109,781.52 × 43,743.85
  4. Step 4: Simplify right side
    79,551.53x = 4,802,266,343.65
  5. Step 5: Solve for x
    x = 4,802,266,343.65/79,551.53
  6. Step 6: Final answer
    x = 60,366.74

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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.