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Finding the Third Proportional to 161.75 and 264.75

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Solution

The third proportional to 161.75 and 264.75 is: 433.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.75 : 264.75 = 264.75 : x
  2. Step 2: Convert to fraction form
    161.75/264.75 = 264.75/x
  3. Step 3: Cross multiply
    161.75x = 264.75 × 264.75
  4. Step 4: Simplify right side
    161.75x = 70,092.56
  5. Step 5: Solve for x
    x = 70,092.56/161.75
  6. Step 6: Final answer
    x = 433.34

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.