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Finding the Third Proportional to 111.94 and 171

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Solution

The third proportional to 111.94 and 171 is: 261.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.94 : 171 = 171 : x
  2. Step 2: Convert to fraction form
    111.94/171 = 171/x
  3. Step 3: Cross multiply
    111.94x = 171 × 171
  4. Step 4: Simplify right side
    111.94x = 29,241
  5. Step 5: Solve for x
    x = 29,241/111.94
  6. Step 6: Final answer
    x = 261.23

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.