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Finding the Fourth Proportional to 113,843.18, 170,772.97 and 43,722.49

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Solution

The fourth proportional to 113,843.18, 170,772.97 and 43,722.49 is: 65,586.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,843.18 : 170,772.97 = 43,722.49 : x
  2. Step 2: Convert to fraction form
    113,843.18/170,772.97 = 43,722.49/x
  3. Step 3: Cross multiply
    113,843.18x = 170,772.97 × 43,722.49
  4. Step 4: Simplify right side
    113,843.18x = 7,466,620,061.41
  5. Step 5: Solve for x
    x = 7,466,620,061.41/113,843.18
  6. Step 6: Final answer
    x = 65,586.89

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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.