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Finding the Third Proportional to 168,795.56 and 261,280.69

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Solution

The third proportional to 168,795.56 and 261,280.69 is: 404,439.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,795.56 : 261,280.69 = 261,280.69 : x
  2. Step 2: Convert to fraction form
    168,795.56/261,280.69 = 261,280.69/x
  3. Step 3: Cross multiply
    168,795.56x = 261,280.69 × 261,280.69
  4. Step 4: Simplify right side
    168,795.56x = 68,267,597,660.47
  5. Step 5: Solve for x
    x = 68,267,597,660.47/168,795.56
  6. Step 6: Final answer
    x = 404,439.53

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.