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Finding the Fourth Proportional to 362,921.50, 500,831.67 and 203,945.50

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Solution

The fourth proportional to 362,921.50, 500,831.67 and 203,945.50 is: 281,444.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,921.50 : 500,831.67 = 203,945.50 : x
  2. Step 2: Convert to fraction form
    362,921.50/500,831.67 = 203,945.50/x
  3. Step 3: Cross multiply
    362,921.50x = 500,831.67 × 203,945.50
  4. Step 4: Simplify right side
    362,921.50x = 102,142,365,353.99
  5. Step 5: Solve for x
    x = 102,142,365,353.99/362,921.50
  6. Step 6: Final answer
    x = 281,444.79

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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.