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Finding the Third Proportional to 122.91 and 233.16

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Solution

The third proportional to 122.91 and 233.16 is: 442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.91 : 233.16 = 233.16 : x
  2. Step 2: Convert to fraction form
    122.91/233.16 = 233.16/x
  3. Step 3: Cross multiply
    122.91x = 233.16 × 233.16
  4. Step 4: Simplify right side
    122.91x = 54,361.84
  5. Step 5: Solve for x
    x = 54,361.84/122.91
  6. Step 6: Final answer
    x = 442.30

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.