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Finding the Fourth Proportional to 113,843.11, 170,772.87 and 43,722.42

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Solution

The fourth proportional to 113,843.11, 170,772.87 and 43,722.42 is: 65,586.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,843.11 : 170,772.87 = 43,722.42 : x
  2. Step 2: Convert to fraction form
    113,843.11/170,772.87 = 43,722.42/x
  3. Step 3: Cross multiply
    113,843.11x = 170,772.87 × 43,722.42
  4. Step 4: Simplify right side
    113,843.11x = 7,466,603,262.00
  5. Step 5: Solve for x
    x = 7,466,603,262.00/113,843.11
  6. Step 6: Final answer
    x = 65,586.78

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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.