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Finding the Third Proportional to 196 and 239.50

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Solution

The third proportional to 196 and 239.50 is: 292.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    196 : 239.50 = 239.50 : x
  2. Step 2: Convert to fraction form
    196/239.50 = 239.50/x
  3. Step 3: Cross multiply
    196x = 239.50 × 239.50
  4. Step 4: Simplify right side
    196x = 57,360.25
  5. Step 5: Solve for x
    x = 57,360.25/196
  6. Step 6: Final answer
    x = 292.65

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.