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Finding the Fourth Proportional to 76,190.92, 114,285.16 and 20,786.92

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Solution

The fourth proportional to 76,190.92, 114,285.16 and 20,786.92 is: 31,180.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,190.92 : 114,285.16 = 20,786.92 : x
  2. Step 2: Convert to fraction form
    76,190.92/114,285.16 = 20,786.92/x
  3. Step 3: Cross multiply
    76,190.92x = 114,285.16 × 20,786.92
  4. Step 4: Simplify right side
    76,190.92x = 2,375,636,478.11
  5. Step 5: Solve for x
    x = 2,375,636,478.11/76,190.92
  6. Step 6: Final answer
    x = 31,180.05

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