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Finding the Third Proportional to 195.50 and 313.25

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Solution

The third proportional to 195.50 and 313.25 is: 501.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.50 : 313.25 = 313.25 : x
  2. Step 2: Convert to fraction form
    195.50/313.25 = 313.25/x
  3. Step 3: Cross multiply
    195.50x = 313.25 × 313.25
  4. Step 4: Simplify right side
    195.50x = 98,125.56
  5. Step 5: Solve for x
    x = 98,125.56/195.50
  6. Step 6: Final answer
    x = 501.92

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.