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Finding the Third Proportional to 198.50 and 332.50

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Solution

The third proportional to 198.50 and 332.50 is: 556.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.50 : 332.50 = 332.50 : x
  2. Step 2: Convert to fraction form
    198.50/332.50 = 332.50/x
  3. Step 3: Cross multiply
    198.50x = 332.50 × 332.50
  4. Step 4: Simplify right side
    198.50x = 110,556.25
  5. Step 5: Solve for x
    x = 110,556.25/198.50
  6. Step 6: Final answer
    x = 556.96

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.