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Finding the Fourth Proportional to 14,568,961.16, 20,104,639.45 and 8,042,450.49

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Solution

The fourth proportional to 14,568,961.16, 20,104,639.45 and 8,042,450.49 is: 11,098,290.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,568,961.16 : 20,104,639.45 = 8,042,450.49 : x
  2. Step 2: Convert to fraction form
    14,568,961.16/20,104,639.45 = 8,042,450.49/x
  3. Step 3: Cross multiply
    14,568,961.16x = 20,104,639.45 × 8,042,450.49
  4. Step 4: Simplify right side
    14,568,961.16x = 161,690,567,375,819.72
  5. Step 5: Solve for x
    x = 161,690,567,375,819.72/14,568,961.16
  6. Step 6: Final answer
    x = 11,098,290.78

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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.