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Finding the Fourth Proportional to 71,806.25, 99,028.11 and 44,951.20

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Solution

The fourth proportional to 71,806.25, 99,028.11 and 44,951.20 is: 61,992.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,806.25 : 99,028.11 = 44,951.20 : x
  2. Step 2: Convert to fraction form
    71,806.25/99,028.11 = 44,951.20/x
  3. Step 3: Cross multiply
    71,806.25x = 99,028.11 × 44,951.20
  4. Step 4: Simplify right side
    71,806.25x = 4,451,432,378.23
  5. Step 5: Solve for x
    x = 4,451,432,378.23/71,806.25
  6. Step 6: Final answer
    x = 61,992.27

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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.