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Finding the Third Proportional to 159.47 and 333.70

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Solution

The third proportional to 159.47 and 333.70 is: 698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.47 : 333.70 = 333.70 : x
  2. Step 2: Convert to fraction form
    159.47/333.70 = 333.70/x
  3. Step 3: Cross multiply
    159.47x = 333.70 × 333.70
  4. Step 4: Simplify right side
    159.47x = 111,357.78
  5. Step 5: Solve for x
    x = 111,357.78/159.47
  6. Step 6: Final answer
    x = 698.30

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.