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Finding the Fourth Proportional to 79,171.80, 118,844.10 and 44,179.80

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Solution

The fourth proportional to 79,171.80, 118,844.10 and 44,179.80 is: 66,317.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,171.80 : 118,844.10 = 44,179.80 : x
  2. Step 2: Convert to fraction form
    79,171.80/118,844.10 = 44,179.80/x
  3. Step 3: Cross multiply
    79,171.80x = 118,844.10 × 44,179.80
  4. Step 4: Simplify right side
    79,171.80x = 5,250,508,569.18
  5. Step 5: Solve for x
    x = 5,250,508,569.18/79,171.80
  6. Step 6: Final answer
    x = 66,317.91

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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.