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Finding the Fourth Proportional to 67,357, 100,980.22 and 27,942.40

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Solution

The fourth proportional to 67,357, 100,980.22 and 27,942.40 is: 41,890.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,357 : 100,980.22 = 27,942.40 : x
  2. Step 2: Convert to fraction form
    67,357/100,980.22 = 27,942.40/x
  3. Step 3: Cross multiply
    67,357x = 100,980.22 × 27,942.40
  4. Step 4: Simplify right side
    67,357x = 2,821,629,699.33
  5. Step 5: Solve for x
    x = 2,821,629,699.33/67,357
  6. Step 6: Final answer
    x = 41,890.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.