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Finding the Third Proportional to 122.34 and 225.94

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Solution

The third proportional to 122.34 and 225.94 is: 417.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.34 : 225.94 = 225.94 : x
  2. Step 2: Convert to fraction form
    122.34/225.94 = 225.94/x
  3. Step 3: Cross multiply
    122.34x = 225.94 × 225.94
  4. Step 4: Simplify right side
    122.34x = 51,047.75
  5. Step 5: Solve for x
    x = 51,047.75/122.34
  6. Step 6: Final answer
    x = 417.25

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.