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Finding the Fourth Proportional to 111,266.87, 166,910.57 and 36,387.41

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Solution

The fourth proportional to 111,266.87, 166,910.57 and 36,387.41 is: 54,584.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,266.87 : 166,910.57 = 36,387.41 : x
  2. Step 2: Convert to fraction form
    111,266.87/166,910.57 = 36,387.41/x
  3. Step 3: Cross multiply
    111,266.87x = 166,910.57 × 36,387.41
  4. Step 4: Simplify right side
    111,266.87x = 6,073,442,327.43
  5. Step 5: Solve for x
    x = 6,073,442,327.43/111,266.87
  6. Step 6: Final answer
    x = 54,584.47

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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.