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Finding the Third Proportional to 194.50 and 249.50

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Solution

The third proportional to 194.50 and 249.50 is: 320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.50 : 249.50 = 249.50 : x
  2. Step 2: Convert to fraction form
    194.50/249.50 = 249.50/x
  3. Step 3: Cross multiply
    194.50x = 249.50 × 249.50
  4. Step 4: Simplify right side
    194.50x = 62,250.25
  5. Step 5: Solve for x
    x = 62,250.25/194.50
  6. Step 6: Final answer
    x = 320.05

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.