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Finding the Fourth Proportional to 79,676.28, 109,957.24 and 43,865.92

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Solution

The fourth proportional to 79,676.28, 109,957.24 and 43,865.92 is: 60,537.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,676.28 : 109,957.24 = 43,865.92 : x
  2. Step 2: Convert to fraction form
    79,676.28/109,957.24 = 43,865.92/x
  3. Step 3: Cross multiply
    79,676.28x = 109,957.24 × 43,865.92
  4. Step 4: Simplify right side
    79,676.28x = 4,823,375,493.26
  5. Step 5: Solve for x
    x = 4,823,375,493.26/79,676.28
  6. Step 6: Final answer
    x = 60,537.16

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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.