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Finding the Third Proportional to 168.84 and 369.05

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Solution

The third proportional to 168.84 and 369.05 is: 806.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.84 : 369.05 = 369.05 : x
  2. Step 2: Convert to fraction form
    168.84/369.05 = 369.05/x
  3. Step 3: Cross multiply
    168.84x = 369.05 × 369.05
  4. Step 4: Simplify right side
    168.84x = 136,195.60
  5. Step 5: Solve for x
    x = 136,195.60/168.84
  6. Step 6: Final answer
    x = 806.64

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.