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Finding the Third Proportional to 196 and 268.25

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Solution

The third proportional to 196 and 268.25 is: 367.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    196 : 268.25 = 268.25 : x
  2. Step 2: Convert to fraction form
    196/268.25 = 268.25/x
  3. Step 3: Cross multiply
    196x = 268.25 × 268.25
  4. Step 4: Simplify right side
    196x = 71,958.06
  5. Step 5: Solve for x
    x = 71,958.06/196
  6. Step 6: Final answer
    x = 367.13

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.