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Finding the Third Proportional to 75,379 and 110,821

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Solution

The third proportional to 75,379 and 110,821 is: 162,927.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,379 : 110,821 = 110,821 : x
  2. Step 2: Convert to fraction form
    75,379/110,821 = 110,821/x
  3. Step 3: Cross multiply
    75,379x = 110,821 × 110,821
  4. Step 4: Simplify right side
    75,379x = 12,281,294,041
  5. Step 5: Solve for x
    x = 12,281,294,041/75,379
  6. Step 6: Final answer
    x = 162,927.26

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.