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Finding the Third Proportional to 79,680 and 119,052

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Solution

The third proportional to 79,680 and 119,052 is: 177,878.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,680 : 119,052 = 119,052 : x
  2. Step 2: Convert to fraction form
    79,680/119,052 = 119,052/x
  3. Step 3: Cross multiply
    79,680x = 119,052 × 119,052
  4. Step 4: Simplify right side
    79,680x = 14,173,378,704
  5. Step 5: Solve for x
    x = 14,173,378,704/79,680
  6. Step 6: Final answer
    x = 177,878.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.