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Finding the Third Proportional to 116 and 196

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Solution

The third proportional to 116 and 196 is: 331.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    116 : 196 = 196 : x
  2. Step 2: Convert to fraction form
    116/196 = 196/x
  3. Step 3: Cross multiply
    116x = 196 × 196
  4. Step 4: Simplify right side
    116x = 38,416
  5. Step 5: Solve for x
    x = 38,416/116
  6. Step 6: Final answer
    x = 331.17

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Why These Related Problems?

These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.