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Finding the Fourth Proportional to 79,169.28, 118,753.92 and 48,013.44

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Solution

The fourth proportional to 79,169.28, 118,753.92 and 48,013.44 is: 72,020.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,169.28 : 118,753.92 = 48,013.44 : x
  2. Step 2: Convert to fraction form
    79,169.28/118,753.92 = 48,013.44/x
  3. Step 3: Cross multiply
    79,169.28x = 118,753.92 × 48,013.44
  4. Step 4: Simplify right side
    79,169.28x = 5,701,784,212.68
  5. Step 5: Solve for x
    x = 5,701,784,212.68/79,169.28
  6. Step 6: Final answer
    x = 72,020.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.