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Finding the Third Proportional to 122 and 264.50

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Solution

The third proportional to 122 and 264.50 is: 573.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    122 : 264.50 = 264.50 : x
  2. Step 2: Convert to fraction form
    122/264.50 = 264.50/x
  3. Step 3: Cross multiply
    122x = 264.50 × 264.50
  4. Step 4: Simplify right side
    122x = 69,960.25
  5. Step 5: Solve for x
    x = 69,960.25/122
  6. Step 6: Final answer
    x = 573.44

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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.