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Finding the Third Proportional to 200.25 and 336.38

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Solution

The third proportional to 200.25 and 336.38 is: 565.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.25 : 336.38 = 336.38 : x
  2. Step 2: Convert to fraction form
    200.25/336.38 = 336.38/x
  3. Step 3: Cross multiply
    200.25x = 336.38 × 336.38
  4. Step 4: Simplify right side
    200.25x = 113,148.14
  5. Step 5: Solve for x
    x = 113,148.14/200.25
  6. Step 6: Final answer
    x = 565.03

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.