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Finding the Third Proportional to 174.50 and 355

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Solution

The third proportional to 174.50 and 355 is: 722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.50 : 355 = 355 : x
  2. Step 2: Convert to fraction form
    174.50/355 = 355/x
  3. Step 3: Cross multiply
    174.50x = 355 × 355
  4. Step 4: Simplify right side
    174.50x = 126,025
  5. Step 5: Solve for x
    x = 126,025/174.50
  6. Step 6: Final answer
    x = 722.21

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These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.