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Finding the Fourth Proportional to 101,761.12, 140,438.73 and 56,453.68

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Solution

The fourth proportional to 101,761.12, 140,438.73 and 56,453.68 is: 77,910.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,761.12 : 140,438.73 = 56,453.68 : x
  2. Step 2: Convert to fraction form
    101,761.12/140,438.73 = 56,453.68/x
  3. Step 3: Cross multiply
    101,761.12x = 140,438.73 × 56,453.68
  4. Step 4: Simplify right side
    101,761.12x = 7,928,283,192.72
  5. Step 5: Solve for x
    x = 7,928,283,192.72/101,761.12
  6. Step 6: Final answer
    x = 77,910.73

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