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Finding the Fourth Proportional to 133,190.70, 183,800.16 and 72,761.64

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Solution

The fourth proportional to 133,190.70, 183,800.16 and 72,761.64 is: 100,409.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,190.70 : 183,800.16 = 72,761.64 : x
  2. Step 2: Convert to fraction form
    133,190.70/183,800.16 = 72,761.64/x
  3. Step 3: Cross multiply
    133,190.70x = 183,800.16 × 72,761.64
  4. Step 4: Simplify right side
    133,190.70x = 13,373,601,073.86
  5. Step 5: Solve for x
    x = 13,373,601,073.86/133,190.70
  6. Step 6: Final answer
    x = 100,409.42

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