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Finding the Fourth Proportional to 90,446.89, 135,668.22 and 23,891.67

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Solution

The fourth proportional to 90,446.89, 135,668.22 and 23,891.67 is: 35,836.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,446.89 : 135,668.22 = 23,891.67 : x
  2. Step 2: Convert to fraction form
    90,446.89/135,668.22 = 23,891.67/x
  3. Step 3: Cross multiply
    90,446.89x = 135,668.22 × 23,891.67
  4. Step 4: Simplify right side
    90,446.89x = 3,241,340,341.73
  5. Step 5: Solve for x
    x = 3,241,340,341.73/90,446.89
  6. Step 6: Final answer
    x = 35,836.95

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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.