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Finding the Third Proportional to 168 and 452.50

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Solution

The third proportional to 168 and 452.50 is: 1,218.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168 : 452.50 = 452.50 : x
  2. Step 2: Convert to fraction form
    168/452.50 = 452.50/x
  3. Step 3: Cross multiply
    168x = 452.50 × 452.50
  4. Step 4: Simplify right side
    168x = 204,756.25
  5. Step 5: Solve for x
    x = 204,756.25/168
  6. Step 6: Final answer
    x = 1,218.79

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Why These Related Problems?

These problems maintain the same ratio (2.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.