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Finding the Fourth Proportional to 303,629.81, 419,006.41 and 167,660.83

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Solution

The fourth proportional to 303,629.81, 419,006.41 and 167,660.83 is: 231,370.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,629.81 : 419,006.41 = 167,660.83 : x
  2. Step 2: Convert to fraction form
    303,629.81/419,006.41 = 167,660.83/x
  3. Step 3: Cross multiply
    303,629.81x = 419,006.41 × 167,660.83
  4. Step 4: Simplify right side
    303,629.81x = 70,250,960,380.89
  5. Step 5: Solve for x
    x = 70,250,960,380.89/303,629.81
  6. Step 6: Final answer
    x = 231,370.43

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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.