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Finding the Third Proportional to 148.92 and 326.95

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Solution

The third proportional to 148.92 and 326.95 is: 717.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.92 : 326.95 = 326.95 : x
  2. Step 2: Convert to fraction form
    148.92/326.95 = 326.95/x
  3. Step 3: Cross multiply
    148.92x = 326.95 × 326.95
  4. Step 4: Simplify right side
    148.92x = 106,898.35
  5. Step 5: Solve for x
    x = 106,898.35/148.92
  6. Step 6: Final answer
    x = 717.81

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.