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Finding the Third Proportional to 167 and 392

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Solution

The third proportional to 167 and 392 is: 920.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    167 : 392 = 392 : x
  2. Step 2: Convert to fraction form
    167/392 = 392/x
  3. Step 3: Cross multiply
    167x = 392 × 392
  4. Step 4: Simplify right side
    167x = 153,664
  5. Step 5: Solve for x
    x = 153,664/167
  6. Step 6: Final answer
    x = 920.14

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.