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Finding the Fourth Proportional to 111,597.87, 167,353.97 and 47,515.38

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Solution

The fourth proportional to 111,597.87, 167,353.97 and 47,515.38 is: 71,254.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,597.87 : 167,353.97 = 47,515.38 : x
  2. Step 2: Convert to fraction form
    111,597.87/167,353.97 = 47,515.38/x
  3. Step 3: Cross multiply
    111,597.87x = 167,353.97 × 47,515.38
  4. Step 4: Simplify right side
    111,597.87x = 7,951,887,241.48
  5. Step 5: Solve for x
    x = 7,951,887,241.48/111,597.87
  6. Step 6: Final answer
    x = 71,254.83

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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.