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Finding the Fourth Proportional to 168,757.70, 253,136.55 and 164,821.10

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Solution

The fourth proportional to 168,757.70, 253,136.55 and 164,821.10 is: 247,231.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,757.70 : 253,136.55 = 164,821.10 : x
  2. Step 2: Convert to fraction form
    168,757.70/253,136.55 = 164,821.10/x
  3. Step 3: Cross multiply
    168,757.70x = 253,136.55 × 164,821.10
  4. Step 4: Simplify right side
    168,757.70x = 41,722,244,621.21
  5. Step 5: Solve for x
    x = 41,722,244,621.21/168,757.70
  6. Step 6: Final answer
    x = 247,231.65

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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.