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Finding the Third Proportional to 122.06 and 188.25

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Solution

The third proportional to 122.06 and 188.25 is: 290.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.06 : 188.25 = 188.25 : x
  2. Step 2: Convert to fraction form
    122.06/188.25 = 188.25/x
  3. Step 3: Cross multiply
    122.06x = 188.25 × 188.25
  4. Step 4: Simplify right side
    122.06x = 35,438.06
  5. Step 5: Solve for x
    x = 35,438.06/122.06
  6. Step 6: Final answer
    x = 290.33

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.