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Finding the Third Proportional to 161.50 and 386

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Solution

The third proportional to 161.50 and 386 is: 922.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.50 : 386 = 386 : x
  2. Step 2: Convert to fraction form
    161.50/386 = 386/x
  3. Step 3: Cross multiply
    161.50x = 386 × 386
  4. Step 4: Simplify right side
    161.50x = 148,996
  5. Step 5: Solve for x
    x = 148,996/161.50
  6. Step 6: Final answer
    x = 922.58

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These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.