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Finding the Third Proportional to 120,704 and 176,736

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Solution

The third proportional to 120,704 and 176,736 is: 258,778.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,704 : 176,736 = 176,736 : x
  2. Step 2: Convert to fraction form
    120,704/176,736 = 176,736/x
  3. Step 3: Cross multiply
    120,704x = 176,736 × 176,736
  4. Step 4: Simplify right side
    120,704x = 31,235,613,696
  5. Step 5: Solve for x
    x = 31,235,613,696/120,704
  6. Step 6: Final answer
    x = 258,778.61

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.