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Finding the Fourth Proportional to 73,119.87, 109,679.83 and 26,372.75

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Solution

The fourth proportional to 73,119.87, 109,679.83 and 26,372.75 is: 39,559.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,119.87 : 109,679.83 = 26,372.75 : x
  2. Step 2: Convert to fraction form
    73,119.87/109,679.83 = 26,372.75/x
  3. Step 3: Cross multiply
    73,119.87x = 109,679.83 × 26,372.75
  4. Step 4: Simplify right side
    73,119.87x = 2,892,558,122.30
  5. Step 5: Solve for x
    x = 2,892,558,122.30/73,119.87
  6. Step 6: Final answer
    x = 39,559.13

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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.