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Finding the Third Proportional to 154.88 and 336.75

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Solution

The third proportional to 154.88 and 336.75 is: 732.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.88 : 336.75 = 336.75 : x
  2. Step 2: Convert to fraction form
    154.88/336.75 = 336.75/x
  3. Step 3: Cross multiply
    154.88x = 336.75 × 336.75
  4. Step 4: Simplify right side
    154.88x = 113,400.56
  5. Step 5: Solve for x
    x = 113,400.56/154.88
  6. Step 6: Final answer
    x = 732.21

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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.