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Finding the Fourth Proportional to 111,399.87, 167,105.28 and 41,262.78

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Solution

The fourth proportional to 111,399.87, 167,105.28 and 41,262.78 is: 61,896.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,399.87 : 167,105.28 = 41,262.78 : x
  2. Step 2: Convert to fraction form
    111,399.87/167,105.28 = 41,262.78/x
  3. Step 3: Cross multiply
    111,399.87x = 167,105.28 × 41,262.78
  4. Step 4: Simplify right side
    111,399.87x = 6,895,228,405.48
  5. Step 5: Solve for x
    x = 6,895,228,405.48/111,399.87
  6. Step 6: Final answer
    x = 61,896.20

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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.