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Finding the Fourth Proportional to 87,072.76, 120,023.94 and 56,804.68

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Solution

The fourth proportional to 87,072.76, 120,023.94 and 56,804.68 is: 78,301.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,072.76 : 120,023.94 = 56,804.68 : x
  2. Step 2: Convert to fraction form
    87,072.76/120,023.94 = 56,804.68/x
  3. Step 3: Cross multiply
    87,072.76x = 120,023.94 × 56,804.68
  4. Step 4: Simplify right side
    87,072.76x = 6,817,921,504.04
  5. Step 5: Solve for x
    x = 6,817,921,504.04/87,072.76
  6. Step 6: Final answer
    x = 78,301.43

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