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Finding the Fourth Proportional to 361,255.32, 541,959.07 and 136,610.78

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Solution

The fourth proportional to 361,255.32, 541,959.07 and 136,610.78 is: 204,944.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,255.32 : 541,959.07 = 136,610.78 : x
  2. Step 2: Convert to fraction form
    361,255.32/541,959.07 = 136,610.78/x
  3. Step 3: Cross multiply
    361,255.32x = 541,959.07 × 136,610.78
  4. Step 4: Simplify right side
    361,255.32x = 74,037,451,534.12
  5. Step 5: Solve for x
    x = 74,037,451,534.12/361,255.32
  6. Step 6: Final answer
    x = 204,944.94

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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.