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Finding the Third Proportional to 116.88 and 159.13

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Solution

The third proportional to 116.88 and 159.13 is: 216.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.88 : 159.13 = 159.13 : x
  2. Step 2: Convert to fraction form
    116.88/159.13 = 159.13/x
  3. Step 3: Cross multiply
    116.88x = 159.13 × 159.13
  4. Step 4: Simplify right side
    116.88x = 25,320.77
  5. Step 5: Solve for x
    x = 25,320.77/116.88
  6. Step 6: Final answer
    x = 216.65

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.