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Finding the Third Proportional to 136.50 and 293

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Solution

The third proportional to 136.50 and 293 is: 628.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.50 : 293 = 293 : x
  2. Step 2: Convert to fraction form
    136.50/293 = 293/x
  3. Step 3: Cross multiply
    136.50x = 293 × 293
  4. Step 4: Simplify right side
    136.50x = 85,849
  5. Step 5: Solve for x
    x = 85,849/136.50
  6. Step 6: Final answer
    x = 628.93

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.