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Finding the Third Proportional to 104.63 and 159.19

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Solution

The third proportional to 104.63 and 159.19 is: 242.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104.63 : 159.19 = 159.19 : x
  2. Step 2: Convert to fraction form
    104.63/159.19 = 159.19/x
  3. Step 3: Cross multiply
    104.63x = 159.19 × 159.19
  4. Step 4: Simplify right side
    104.63x = 25,340.66
  5. Step 5: Solve for x
    x = 25,340.66/104.63
  6. Step 6: Final answer
    x = 242.20

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.