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Finding the Fourth Proportional to 79,398.54, 119,144.52 and 29,513.70

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Solution

The fourth proportional to 79,398.54, 119,144.52 and 29,513.70 is: 44,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,398.54 : 119,144.52 = 29,513.70 : x
  2. Step 2: Convert to fraction form
    79,398.54/119,144.52 = 29,513.70/x
  3. Step 3: Cross multiply
    79,398.54x = 119,144.52 × 29,513.70
  4. Step 4: Simplify right side
    79,398.54x = 3,516,395,619.92
  5. Step 5: Solve for x
    x = 3,516,395,619.92/79,398.54
  6. Step 6: Final answer
    x = 44,287.91

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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.