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Finding the Fourth Proportional to 111,115.44, 166,691.52 and 36,213.84

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Solution

The fourth proportional to 111,115.44, 166,691.52 and 36,213.84 is: 54,326.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,115.44 : 166,691.52 = 36,213.84 : x
  2. Step 2: Convert to fraction form
    111,115.44/166,691.52 = 36,213.84/x
  3. Step 3: Cross multiply
    111,115.44x = 166,691.52 × 36,213.84
  4. Step 4: Simplify right side
    111,115.44x = 6,036,540,034.64
  5. Step 5: Solve for x
    x = 6,036,540,034.64/111,115.44
  6. Step 6: Final answer
    x = 54,326.74

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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.