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Finding the Fourth Proportional to 68,883.81, 103,227.05 and 39,240.44

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Solution

The fourth proportional to 68,883.81, 103,227.05 and 39,240.44 is: 58,804.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,883.81 : 103,227.05 = 39,240.44 : x
  2. Step 2: Convert to fraction form
    68,883.81/103,227.05 = 39,240.44/x
  3. Step 3: Cross multiply
    68,883.81x = 103,227.05 × 39,240.44
  4. Step 4: Simplify right side
    68,883.81x = 4,050,674,149.56
  5. Step 5: Solve for x
    x = 4,050,674,149.56/68,883.81
  6. Step 6: Final answer
    x = 58,804.44

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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.