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Finding the Third Proportional to 192.25 and 235.75

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Solution

The third proportional to 192.25 and 235.75 is: 289.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.25 : 235.75 = 235.75 : x
  2. Step 2: Convert to fraction form
    192.25/235.75 = 235.75/x
  3. Step 3: Cross multiply
    192.25x = 235.75 × 235.75
  4. Step 4: Simplify right side
    192.25x = 55,578.06
  5. Step 5: Solve for x
    x = 55,578.06/192.25
  6. Step 6: Final answer
    x = 289.09

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Why These Related Problems?

These problems maintain the same ratio (1.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.