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Finding the Fourth Proportional to 361,134.12, 541,405.56 and 136,367.01

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Solution

The fourth proportional to 361,134.12, 541,405.56 and 136,367.01 is: 204,438.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,134.12 : 541,405.56 = 136,367.01 : x
  2. Step 2: Convert to fraction form
    361,134.12/541,405.56 = 136,367.01/x
  3. Step 3: Cross multiply
    361,134.12x = 541,405.56 × 136,367.01
  4. Step 4: Simplify right side
    361,134.12x = 73,829,857,414.58
  5. Step 5: Solve for x
    x = 73,829,857,414.58/361,134.12
  6. Step 6: Final answer
    x = 204,438.89

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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.