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Finding the Fourth Proportional to 386,984.97, 580,251.96 and 150,050.88

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Solution

The fourth proportional to 386,984.97, 580,251.96 and 150,050.88 is: 224,988.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,984.97 : 580,251.96 = 150,050.88 : x
  2. Step 2: Convert to fraction form
    386,984.97/580,251.96 = 150,050.88/x
  3. Step 3: Cross multiply
    386,984.97x = 580,251.96 × 150,050.88
  4. Step 4: Simplify right side
    386,984.97x = 87,067,317,219.72
  5. Step 5: Solve for x
    x = 87,067,317,219.72/386,984.97
  6. Step 6: Final answer
    x = 224,988.89

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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.