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Finding the Fourth Proportional to 367,635.70, 551,453.55 and 131,245.30

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Solution

The fourth proportional to 367,635.70, 551,453.55 and 131,245.30 is: 196,867.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,635.70 : 551,453.55 = 131,245.30 : x
  2. Step 2: Convert to fraction form
    367,635.70/551,453.55 = 131,245.30/x
  3. Step 3: Cross multiply
    367,635.70x = 551,453.55 × 131,245.30
  4. Step 4: Simplify right side
    367,635.70x = 72,375,686,605.82
  5. Step 5: Solve for x
    x = 72,375,686,605.82/367,635.70
  6. Step 6: Final answer
    x = 196,867.95

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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.