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Finding the Third Proportional to 133.25 and 235

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Solution

The third proportional to 133.25 and 235 is: 414.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.25 : 235 = 235 : x
  2. Step 2: Convert to fraction form
    133.25/235 = 235/x
  3. Step 3: Cross multiply
    133.25x = 235 × 235
  4. Step 4: Simplify right side
    133.25x = 55,225
  5. Step 5: Solve for x
    x = 55,225/133.25
  6. Step 6: Final answer
    x = 414.45

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.