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Finding the Fourth Proportional to 70,622.62, 105,882.60 and 33,163.42

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Solution

The fourth proportional to 70,622.62, 105,882.60 and 33,163.42 is: 49,721.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,622.62 : 105,882.60 = 33,163.42 : x
  2. Step 2: Convert to fraction form
    70,622.62/105,882.60 = 33,163.42/x
  3. Step 3: Cross multiply
    70,622.62x = 105,882.60 × 33,163.42
  4. Step 4: Simplify right side
    70,622.62x = 3,511,429,134.49
  5. Step 5: Solve for x
    x = 3,511,429,134.49/70,622.62
  6. Step 6: Final answer
    x = 49,721.03

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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.