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Finding the Third Proportional to 167 and 328.50

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Solution

The third proportional to 167 and 328.50 is: 646.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    167 : 328.50 = 328.50 : x
  2. Step 2: Convert to fraction form
    167/328.50 = 328.50/x
  3. Step 3: Cross multiply
    167x = 328.50 × 328.50
  4. Step 4: Simplify right side
    167x = 107,912.25
  5. Step 5: Solve for x
    x = 107,912.25/167
  6. Step 6: Final answer
    x = 646.18

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.