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Finding the Third Proportional to 70.38 and 159.06

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Solution

The third proportional to 70.38 and 159.06 is: 359.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.38 : 159.06 = 159.06 : x
  2. Step 2: Convert to fraction form
    70.38/159.06 = 159.06/x
  3. Step 3: Cross multiply
    70.38x = 159.06 × 159.06
  4. Step 4: Simplify right side
    70.38x = 25,300.88
  5. Step 5: Solve for x
    x = 25,300.88/70.38
  6. Step 6: Final answer
    x = 359.52

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.