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Finding the Fourth Proportional to 303,942.21, 419,440.76 and 167,976.12

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Solution

The fourth proportional to 303,942.21, 419,440.76 and 167,976.12 is: 231,807.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,942.21 : 419,440.76 = 167,976.12 : x
  2. Step 2: Convert to fraction form
    303,942.21/419,440.76 = 167,976.12/x
  3. Step 3: Cross multiply
    303,942.21x = 419,440.76 × 167,976.12
  4. Step 4: Simplify right side
    303,942.21x = 70,456,032,295.98
  5. Step 5: Solve for x
    x = 70,456,032,295.98/303,942.21
  6. Step 6: Final answer
    x = 231,807.33

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1.5x scale

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.