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Finding the Fourth Proportional to 239,644.56, 359,435.52 and 71,161.44

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Solution

The fourth proportional to 239,644.56, 359,435.52 and 71,161.44 is: 106,732.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,644.56 : 359,435.52 = 71,161.44 : x
  2. Step 2: Convert to fraction form
    239,644.56/359,435.52 = 71,161.44/x
  3. Step 3: Cross multiply
    239,644.56x = 359,435.52 × 71,161.44
  4. Step 4: Simplify right side
    239,644.56x = 25,577,949,190.35
  5. Step 5: Solve for x
    x = 25,577,949,190.35/239,644.56
  6. Step 6: Final answer
    x = 106,732.86

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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.