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Finding the Third Proportional to 160.75 and 266.38

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Solution

The third proportional to 160.75 and 266.38 is: 441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.75 : 266.38 = 266.38 : x
  2. Step 2: Convert to fraction form
    160.75/266.38 = 266.38/x
  3. Step 3: Cross multiply
    160.75x = 266.38 × 266.38
  4. Step 4: Simplify right side
    160.75x = 70,955.64
  5. Step 5: Solve for x
    x = 70,955.64/160.75
  6. Step 6: Final answer
    x = 441.40

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.