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Finding the Fourth Proportional to 79,708.85, 119,583.84 and 29,789.33

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Solution

The fourth proportional to 79,708.85, 119,583.84 and 29,789.33 is: 44,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,708.85 : 119,583.84 = 29,789.33 : x
  2. Step 2: Convert to fraction form
    79,708.85/119,583.84 = 29,789.33/x
  3. Step 3: Cross multiply
    79,708.85x = 119,583.84 × 29,789.33
  4. Step 4: Simplify right side
    79,708.85x = 3,562,321,874.51
  5. Step 5: Solve for x
    x = 3,562,321,874.51/79,708.85
  6. Step 6: Final answer
    x = 44,691.68

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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.