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Finding the Third Proportional to 168.75 and 364.57

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Solution

The third proportional to 168.75 and 364.57 is: 787.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.75 : 364.57 = 364.57 : x
  2. Step 2: Convert to fraction form
    168.75/364.57 = 364.57/x
  3. Step 3: Cross multiply
    168.75x = 364.57 × 364.57
  4. Step 4: Simplify right side
    168.75x = 132,911.51
  5. Step 5: Solve for x
    x = 132,911.51/168.75
  6. Step 6: Final answer
    x = 787.62

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.