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Finding the Fourth Proportional to 166,942.08, 250,413.12 and 78,257.88

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Solution

The fourth proportional to 166,942.08, 250,413.12 and 78,257.88 is: 117,386.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,942.08 : 250,413.12 = 78,257.88 : x
  2. Step 2: Convert to fraction form
    166,942.08/250,413.12 = 78,257.88/x
  3. Step 3: Cross multiply
    166,942.08x = 250,413.12 × 78,257.88
  4. Step 4: Simplify right side
    166,942.08x = 19,596,799,895.39
  5. Step 5: Solve for x
    x = 19,596,799,895.39/166,942.08
  6. Step 6: Final answer
    x = 117,386.82

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