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Finding the Fourth Proportional to 262,831.20, 394,246.80 and 203,848.80

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Solution

The fourth proportional to 262,831.20, 394,246.80 and 203,848.80 is: 305,773.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,831.20 : 394,246.80 = 203,848.80 : x
  2. Step 2: Convert to fraction form
    262,831.20/394,246.80 = 203,848.80/x
  3. Step 3: Cross multiply
    262,831.20x = 394,246.80 × 203,848.80
  4. Step 4: Simplify right side
    262,831.20x = 80,366,737,083.84
  5. Step 5: Solve for x
    x = 80,366,737,083.84/262,831.20
  6. Step 6: Final answer
    x = 305,773.20

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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.