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Finding the Fourth Proportional to 267,378.60, 401,067.90 and 119,634.60

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Solution

The fourth proportional to 267,378.60, 401,067.90 and 119,634.60 is: 179,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,378.60 : 401,067.90 = 119,634.60 : x
  2. Step 2: Convert to fraction form
    267,378.60/401,067.90 = 119,634.60/x
  3. Step 3: Cross multiply
    267,378.60x = 401,067.90 × 119,634.60
  4. Step 4: Simplify right side
    267,378.60x = 47,981,597,789.34
  5. Step 5: Solve for x
    x = 47,981,597,789.34/267,378.60
  6. Step 6: Final answer
    x = 179,451.90

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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.