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Finding the Third Proportional to 148 and 236.75

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Solution

The third proportional to 148 and 236.75 is: 378.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    148 : 236.75 = 236.75 : x
  2. Step 2: Convert to fraction form
    148/236.75 = 236.75/x
  3. Step 3: Cross multiply
    148x = 236.75 × 236.75
  4. Step 4: Simplify right side
    148x = 56,050.56
  5. Step 5: Solve for x
    x = 56,050.56/148
  6. Step 6: Final answer
    x = 378.72

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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.