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Finding the Third Proportional to 186 and 268.50

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Solution

The third proportional to 186 and 268.50 is: 387.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186 : 268.50 = 268.50 : x
  2. Step 2: Convert to fraction form
    186/268.50 = 268.50/x
  3. Step 3: Cross multiply
    186x = 268.50 × 268.50
  4. Step 4: Simplify right side
    186x = 72,092.25
  5. Step 5: Solve for x
    x = 72,092.25/186
  6. Step 6: Final answer
    x = 387.59

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.