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Finding the Third Proportional to 109.75 and 193

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Solution

The third proportional to 109.75 and 193 is: 339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109.75 : 193 = 193 : x
  2. Step 2: Convert to fraction form
    109.75/193 = 193/x
  3. Step 3: Cross multiply
    109.75x = 193 × 193
  4. Step 4: Simplify right side
    109.75x = 37,249
  5. Step 5: Solve for x
    x = 37,249/109.75
  6. Step 6: Final answer
    x = 339.40

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.