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Finding the Fourth Proportional to 221,846.72, 332,788.52 and 72,083.68

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Solution

The fourth proportional to 221,846.72, 332,788.52 and 72,083.68 is: 108,131.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,846.72 : 332,788.52 = 72,083.68 : x
  2. Step 2: Convert to fraction form
    221,846.72/332,788.52 = 72,083.68/x
  3. Step 3: Cross multiply
    221,846.72x = 332,788.52 × 72,083.68
  4. Step 4: Simplify right side
    221,846.72x = 23,988,621,183.35
  5. Step 5: Solve for x
    x = 23,988,621,183.35/221,846.72
  6. Step 6: Final answer
    x = 108,131.51

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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.