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Finding the Third Proportional to 167 and 201.25

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Solution

The third proportional to 167 and 201.25 is: 242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    167 : 201.25 = 201.25 : x
  2. Step 2: Convert to fraction form
    167/201.25 = 201.25/x
  3. Step 3: Cross multiply
    167x = 201.25 × 201.25
  4. Step 4: Simplify right side
    167x = 40,501.56
  5. Step 5: Solve for x
    x = 40,501.56/167
  6. Step 6: Final answer
    x = 242.52

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.