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Finding the Fourth Proportional to 79,534.38, 109,757.79 and 43,726.71

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Solution

The fourth proportional to 79,534.38, 109,757.79 and 43,726.71 is: 60,343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,534.38 : 109,757.79 = 43,726.71 : x
  2. Step 2: Convert to fraction form
    79,534.38/109,757.79 = 43,726.71/x
  3. Step 3: Cross multiply
    79,534.38x = 109,757.79 × 43,726.71
  4. Step 4: Simplify right side
    79,534.38x = 4,799,347,053.57
  5. Step 5: Solve for x
    x = 4,799,347,053.57/79,534.38
  6. Step 6: Final answer
    x = 60,343.05

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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.