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Finding the Third Proportional to 148 and 176

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Solution

The third proportional to 148 and 176 is: 209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    148 : 176 = 176 : x
  2. Step 2: Convert to fraction form
    148/176 = 176/x
  3. Step 3: Cross multiply
    148x = 176 × 176
  4. Step 4: Simplify right side
    148x = 30,976
  5. Step 5: Solve for x
    x = 30,976/148
  6. Step 6: Final answer
    x = 209.30

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Why These Related Problems?

These problems maintain the same ratio (1.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.