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Finding the Third Proportional to 134.25 and 153

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Solution

The third proportional to 134.25 and 153 is: 174.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.25 : 153 = 153 : x
  2. Step 2: Convert to fraction form
    134.25/153 = 153/x
  3. Step 3: Cross multiply
    134.25x = 153 × 153
  4. Step 4: Simplify right side
    134.25x = 23,409
  5. Step 5: Solve for x
    x = 23,409/134.25
  6. Step 6: Final answer
    x = 174.37

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.