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Finding the Third Proportional to 127.50 and 175.13

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Solution

The third proportional to 127.50 and 175.13 is: 240.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127.50 : 175.13 = 175.13 : x
  2. Step 2: Convert to fraction form
    127.50/175.13 = 175.13/x
  3. Step 3: Cross multiply
    127.50x = 175.13 × 175.13
  4. Step 4: Simplify right side
    127.50x = 30,668.77
  5. Step 5: Solve for x
    x = 30,668.77/127.50
  6. Step 6: Final answer
    x = 240.54

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.