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Finding the Fourth Proportional to 175,418.97, 263,023.11 and 80,530.44

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Solution

The fourth proportional to 175,418.97, 263,023.11 and 80,530.44 is: 120,747.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,418.97 : 263,023.11 = 80,530.44 : x
  2. Step 2: Convert to fraction form
    175,418.97/263,023.11 = 80,530.44/x
  3. Step 3: Cross multiply
    175,418.97x = 263,023.11 × 80,530.44
  4. Step 4: Simplify right side
    175,418.97x = 21,181,366,778.47
  5. Step 5: Solve for x
    x = 21,181,366,778.47/175,418.97
  6. Step 6: Final answer
    x = 120,747.30

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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.