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Finding the Fourth Proportional to 79,169.80, 118,841.10 and 44,177.80

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Solution

The fourth proportional to 79,169.80, 118,841.10 and 44,177.80 is: 66,314.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,169.80 : 118,841.10 = 44,177.80 : x
  2. Step 2: Convert to fraction form
    79,169.80/118,841.10 = 44,177.80/x
  3. Step 3: Cross multiply
    79,169.80x = 118,841.10 × 44,177.80
  4. Step 4: Simplify right side
    79,169.80x = 5,250,138,347.58
  5. Step 5: Solve for x
    x = 5,250,138,347.58/79,169.80
  6. Step 6: Final answer
    x = 66,314.91

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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.