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Finding the Fourth Proportional to 103,912.94, 155,856.44 and 41,583.98

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Solution

The fourth proportional to 103,912.94, 155,856.44 and 41,583.98 is: 62,370.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,912.94 : 155,856.44 = 41,583.98 : x
  2. Step 2: Convert to fraction form
    103,912.94/155,856.44 = 41,583.98/x
  3. Step 3: Cross multiply
    103,912.94x = 155,856.44 × 41,583.98
  4. Step 4: Simplify right side
    103,912.94x = 6,481,131,083.83
  5. Step 5: Solve for x
    x = 6,481,131,083.83/103,912.94
  6. Step 6: Final answer
    x = 62,370.78

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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.