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Finding the Fourth Proportional to 79,151.66, 109,229.22 and 43,342.37

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Solution

The fourth proportional to 79,151.66, 109,229.22 and 43,342.37 is: 59,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,151.66 : 109,229.22 = 43,342.37 : x
  2. Step 2: Convert to fraction form
    79,151.66/109,229.22 = 43,342.37/x
  3. Step 3: Cross multiply
    79,151.66x = 109,229.22 × 43,342.37
  4. Step 4: Simplify right side
    79,151.66x = 4,734,252,721.91
  5. Step 5: Solve for x
    x = 4,734,252,721.91/79,151.66
  6. Step 6: Final answer
    x = 59,812.43

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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.