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Finding the Third Proportional to 118.97 and 179.72

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Solution

The third proportional to 118.97 and 179.72 is: 271.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.97 : 179.72 = 179.72 : x
  2. Step 2: Convert to fraction form
    118.97/179.72 = 179.72/x
  3. Step 3: Cross multiply
    118.97x = 179.72 × 179.72
  4. Step 4: Simplify right side
    118.97x = 32,298.83
  5. Step 5: Solve for x
    x = 32,298.83/118.97
  6. Step 6: Final answer
    x = 271.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.