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Finding the Fourth Proportional to 73,600.62, 110,389.08 and 20,997.81

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Solution

The fourth proportional to 73,600.62, 110,389.08 and 20,997.81 is: 31,493.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,600.62 : 110,389.08 = 20,997.81 : x
  2. Step 2: Convert to fraction form
    73,600.62/110,389.08 = 20,997.81/x
  3. Step 3: Cross multiply
    73,600.62x = 110,389.08 × 20,997.81
  4. Step 4: Simplify right side
    73,600.62x = 2,317,928,927.91
  5. Step 5: Solve for x
    x = 2,317,928,927.91/73,600.62
  6. Step 6: Final answer
    x = 31,493.33

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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.