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Finding the Third Proportional to 119.39 and 160.73

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Solution

The third proportional to 119.39 and 160.73 is: 216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119.39 : 160.73 = 160.73 : x
  2. Step 2: Convert to fraction form
    119.39/160.73 = 160.73/x
  3. Step 3: Cross multiply
    119.39x = 160.73 × 160.73
  4. Step 4: Simplify right side
    119.39x = 25,835.54
  5. Step 5: Solve for x
    x = 25,835.54/119.39
  6. Step 6: Final answer
    x = 216.40

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.