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Finding the Third Proportional to 176.75 and 411.88

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Solution

The third proportional to 176.75 and 411.88 is: 959.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.75 : 411.88 = 411.88 : x
  2. Step 2: Convert to fraction form
    176.75/411.88 = 411.88/x
  3. Step 3: Cross multiply
    176.75x = 411.88 × 411.88
  4. Step 4: Simplify right side
    176.75x = 169,641.02
  5. Step 5: Solve for x
    x = 169,641.02/176.75
  6. Step 6: Final answer
    x = 959.78

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.