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Finding the Fourth Proportional to 111,691.95, 167,443.73 and 48,464.42

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Solution

The fourth proportional to 111,691.95, 167,443.73 and 48,464.42 is: 72,655.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,691.95 : 167,443.73 = 48,464.42 : x
  2. Step 2: Convert to fraction form
    111,691.95/167,443.73 = 48,464.42/x
  3. Step 3: Cross multiply
    111,691.95x = 167,443.73 × 48,464.42
  4. Step 4: Simplify right side
    111,691.95x = 8,115,062,177.55
  5. Step 5: Solve for x
    x = 8,115,062,177.55/111,691.95
  6. Step 6: Final answer
    x = 72,655.75

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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.