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Finding the Third Proportional to 79,916.63 and 120,079.97

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Solution

The third proportional to 79,916.63 and 120,079.97 is: 180,428.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,916.63 : 120,079.97 = 120,079.97 : x
  2. Step 2: Convert to fraction form
    79,916.63/120,079.97 = 120,079.97/x
  3. Step 3: Cross multiply
    79,916.63x = 120,079.97 × 120,079.97
  4. Step 4: Simplify right side
    79,916.63x = 14,419,198,895.00
  5. Step 5: Solve for x
    x = 14,419,198,895.00/79,916.63
  6. Step 6: Final answer
    x = 180,428.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.