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Finding the Third Proportional to 171.94 and 319.88

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Solution

The third proportional to 171.94 and 319.88 is: 595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.94 : 319.88 = 319.88 : x
  2. Step 2: Convert to fraction form
    171.94/319.88 = 319.88/x
  3. Step 3: Cross multiply
    171.94x = 319.88 × 319.88
  4. Step 4: Simplify right side
    171.94x = 102,320.02
  5. Step 5: Solve for x
    x = 102,320.02/171.94
  6. Step 6: Final answer
    x = 595.10

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.