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Finding the Fourth Proportional to 79,060.66, 109,104.57 and 43,249.90

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Solution

The fourth proportional to 79,060.66, 109,104.57 and 43,249.90 is: 59,685.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,060.66 : 109,104.57 = 43,249.90 : x
  2. Step 2: Convert to fraction form
    79,060.66/109,104.57 = 43,249.90/x
  3. Step 3: Cross multiply
    79,060.66x = 109,104.57 × 43,249.90
  4. Step 4: Simplify right side
    79,060.66x = 4,718,761,633.92
  5. Step 5: Solve for x
    x = 4,718,761,633.92/79,060.66
  6. Step 6: Final answer
    x = 59,685.33

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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.