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Finding the Fourth Proportional to 68,793.47, 103,190.22 and 45,414.44

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Solution

The fourth proportional to 68,793.47, 103,190.22 and 45,414.44 is: 68,121.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,793.47 : 103,190.22 = 45,414.44 : x
  2. Step 2: Convert to fraction form
    68,793.47/103,190.22 = 45,414.44/x
  3. Step 3: Cross multiply
    68,793.47x = 103,190.22 × 45,414.44
  4. Step 4: Simplify right side
    68,793.47x = 4,686,325,538.83
  5. Step 5: Solve for x
    x = 4,686,325,538.83/68,793.47
  6. Step 6: Final answer
    x = 68,121.67

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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.