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Finding the Third Proportional to 200.06 and 261.66

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Solution

The third proportional to 200.06 and 261.66 is: 342.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.06 : 261.66 = 261.66 : x
  2. Step 2: Convert to fraction form
    200.06/261.66 = 261.66/x
  3. Step 3: Cross multiply
    200.06x = 261.66 × 261.66
  4. Step 4: Simplify right side
    200.06x = 68,463.99
  5. Step 5: Solve for x
    x = 68,463.99/200.06
  6. Step 6: Final answer
    x = 342.21

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.