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Finding the Third Proportional to 148.50 and 336.75

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Solution

The third proportional to 148.50 and 336.75 is: 763.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.50 : 336.75 = 336.75 : x
  2. Step 2: Convert to fraction form
    148.50/336.75 = 336.75/x
  3. Step 3: Cross multiply
    148.50x = 336.75 × 336.75
  4. Step 4: Simplify right side
    148.50x = 113,400.56
  5. Step 5: Solve for x
    x = 113,400.56/148.50
  6. Step 6: Final answer
    x = 763.64

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Why These Related Problems?

These problems maintain the same ratio (2.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.