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Finding the Third Proportional to 148 and 325.25

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Solution

The third proportional to 148 and 325.25 is: 714.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    148 : 325.25 = 325.25 : x
  2. Step 2: Convert to fraction form
    148/325.25 = 325.25/x
  3. Step 3: Cross multiply
    148x = 325.25 × 325.25
  4. Step 4: Simplify right side
    148x = 105,787.56
  5. Step 5: Solve for x
    x = 105,787.56/148
  6. Step 6: Final answer
    x = 714.78

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.