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Finding the Third Proportional to 55,072 and 120,698

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Solution

The third proportional to 55,072 and 120,698 is: 264,526.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,072 : 120,698 = 120,698 : x
  2. Step 2: Convert to fraction form
    55,072/120,698 = 120,698/x
  3. Step 3: Cross multiply
    55,072x = 120,698 × 120,698
  4. Step 4: Simplify right side
    55,072x = 14,568,007,204
  5. Step 5: Solve for x
    x = 14,568,007,204/55,072
  6. Step 6: Final answer
    x = 264,526.57

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.