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Finding the Fourth Proportional to 120,768.41, 180,876.71 and 57,632.87

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Solution

The fourth proportional to 120,768.41, 180,876.71 and 57,632.87 is: 86,317.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,768.41 : 180,876.71 = 57,632.87 : x
  2. Step 2: Convert to fraction form
    120,768.41/180,876.71 = 57,632.87/x
  3. Step 3: Cross multiply
    120,768.41x = 180,876.71 × 57,632.87
  4. Step 4: Simplify right side
    120,768.41x = 10,424,444,509.73
  5. Step 5: Solve for x
    x = 10,424,444,509.73/120,768.41
  6. Step 6: Final answer
    x = 86,317.64

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