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Finding the Fourth Proportional to 89,806.62, 123,930.48 and 49,520.37

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Solution

The fourth proportional to 89,806.62, 123,930.48 and 49,520.37 is: 68,336.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,806.62 : 123,930.48 = 49,520.37 : x
  2. Step 2: Convert to fraction form
    89,806.62/123,930.48 = 49,520.37/x
  3. Step 3: Cross multiply
    89,806.62x = 123,930.48 × 49,520.37
  4. Step 4: Simplify right side
    89,806.62x = 6,137,083,223.88
  5. Step 5: Solve for x
    x = 6,137,083,223.88/89,806.62
  6. Step 6: Final answer
    x = 68,336.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.