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Finding the Third Proportional to 76.41 and 168

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Solution

The third proportional to 76.41 and 168 is: 369.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76.41 : 168 = 168 : x
  2. Step 2: Convert to fraction form
    76.41/168 = 168/x
  3. Step 3: Cross multiply
    76.41x = 168 × 168
  4. Step 4: Simplify right side
    76.41x = 28,224
  5. Step 5: Solve for x
    x = 28,224/76.41
  6. Step 6: Final answer
    x = 369.39

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.