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Finding the Third Proportional to 168.25 and 247

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Solution

The third proportional to 168.25 and 247 is: 362.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.25 : 247 = 247 : x
  2. Step 2: Convert to fraction form
    168.25/247 = 247/x
  3. Step 3: Cross multiply
    168.25x = 247 × 247
  4. Step 4: Simplify right side
    168.25x = 61,009
  5. Step 5: Solve for x
    x = 61,009/168.25
  6. Step 6: Final answer
    x = 362.61

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.