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Finding the Third Proportional to 146 and 240.75

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Solution

The third proportional to 146 and 240.75 is: 396.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    146 : 240.75 = 240.75 : x
  2. Step 2: Convert to fraction form
    146/240.75 = 240.75/x
  3. Step 3: Cross multiply
    146x = 240.75 × 240.75
  4. Step 4: Simplify right side
    146x = 57,960.56
  5. Step 5: Solve for x
    x = 57,960.56/146
  6. Step 6: Final answer
    x = 396.99

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.