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Finding the Third Proportional to 196 and 323.75

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Solution

The third proportional to 196 and 323.75 is: 534.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    196 : 323.75 = 323.75 : x
  2. Step 2: Convert to fraction form
    196/323.75 = 323.75/x
  3. Step 3: Cross multiply
    196x = 323.75 × 323.75
  4. Step 4: Simplify right side
    196x = 104,814.06
  5. Step 5: Solve for x
    x = 104,814.06/196
  6. Step 6: Final answer
    x = 534.77

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.