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Finding the Third Proportional to 122.34 and 265.22

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Solution

The third proportional to 122.34 and 265.22 is: 574.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.34 : 265.22 = 265.22 : x
  2. Step 2: Convert to fraction form
    122.34/265.22 = 265.22/x
  3. Step 3: Cross multiply
    122.34x = 265.22 × 265.22
  4. Step 4: Simplify right side
    122.34x = 70,340.99
  5. Step 5: Solve for x
    x = 70,340.99/122.34
  6. Step 6: Final answer
    x = 574.95

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.