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Finding the Fourth Proportional to 263,831.80, 396,039.30 and 164,104.60

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Solution

The fourth proportional to 263,831.80, 396,039.30 and 164,104.60 is: 246,338.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,831.80 : 396,039.30 = 164,104.60 : x
  2. Step 2: Convert to fraction form
    263,831.80/396,039.30 = 164,104.60/x
  3. Step 3: Cross multiply
    263,831.80x = 396,039.30 × 164,104.60
  4. Step 4: Simplify right side
    263,831.80x = 64,991,870,910.78
  5. Step 5: Solve for x
    x = 64,991,870,910.78/263,831.80
  6. Step 6: Final answer
    x = 246,338.28

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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.