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Finding the Fourth Proportional to 120,791.83, 166,687.14 and 67,080.28

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Solution

The fourth proportional to 120,791.83, 166,687.14 and 67,080.28 is: 92,567.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,791.83 : 166,687.14 = 67,080.28 : x
  2. Step 2: Convert to fraction form
    120,791.83/166,687.14 = 67,080.28/x
  3. Step 3: Cross multiply
    120,791.83x = 166,687.14 × 67,080.28
  4. Step 4: Simplify right side
    120,791.83x = 11,181,420,023.60
  5. Step 5: Solve for x
    x = 11,181,420,023.60/120,791.83
  6. Step 6: Final answer
    x = 92,567.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.