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Finding the Third Proportional to 158 and 252

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Solution

The third proportional to 158 and 252 is: 401.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    158 : 252 = 252 : x
  2. Step 2: Convert to fraction form
    158/252 = 252/x
  3. Step 3: Cross multiply
    158x = 252 × 252
  4. Step 4: Simplify right side
    158x = 63,504
  5. Step 5: Solve for x
    x = 63,504/158
  6. Step 6: Final answer
    x = 401.92

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.