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Finding the Fourth Proportional to 321,043.77, 481,639.45 and 96,408.44

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Solution

The fourth proportional to 321,043.77, 481,639.45 and 96,408.44 is: 144,634.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,043.77 : 481,639.45 = 96,408.44 : x
  2. Step 2: Convert to fraction form
    321,043.77/481,639.45 = 96,408.44/x
  3. Step 3: Cross multiply
    321,043.77x = 481,639.45 × 96,408.44
  4. Step 4: Simplify right side
    321,043.77x = 46,434,110,063.88
  5. Step 5: Solve for x
    x = 46,434,110,063.88/321,043.77
  6. Step 6: Final answer
    x = 144,634.83

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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.