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Finding the Fourth Proportional to 168,769.20, 253,153.80 and 159,583.80

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Solution

The fourth proportional to 168,769.20, 253,153.80 and 159,583.80 is: 239,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,769.20 : 253,153.80 = 159,583.80 : x
  2. Step 2: Convert to fraction form
    168,769.20/253,153.80 = 159,583.80/x
  3. Step 3: Cross multiply
    168,769.20x = 253,153.80 × 159,583.80
  4. Step 4: Simplify right side
    168,769.20x = 40,399,245,388.44
  5. Step 5: Solve for x
    x = 40,399,245,388.44/168,769.20
  6. Step 6: Final answer
    x = 239,375.70

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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.