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Finding the Third Proportional to 111.38 and 162

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Solution

The third proportional to 111.38 and 162 is: 235.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.38 : 162 = 162 : x
  2. Step 2: Convert to fraction form
    111.38/162 = 162/x
  3. Step 3: Cross multiply
    111.38x = 162 × 162
  4. Step 4: Simplify right side
    111.38x = 26,244
  5. Step 5: Solve for x
    x = 26,244/111.38
  6. Step 6: Final answer
    x = 235.64

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.