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Finding the Fourth Proportional to 73,940.90, 110,863.98 and 31,234.73

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Solution

The fourth proportional to 73,940.90, 110,863.98 and 31,234.73 is: 46,832.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,940.90 : 110,863.98 = 31,234.73 : x
  2. Step 2: Convert to fraction form
    73,940.90/110,863.98 = 31,234.73/x
  3. Step 3: Cross multiply
    73,940.90x = 110,863.98 × 31,234.73
  4. Step 4: Simplify right side
    73,940.90x = 3,462,806,759.19
  5. Step 5: Solve for x
    x = 3,462,806,759.19/73,940.90
  6. Step 6: Final answer
    x = 46,832.09

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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.