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Finding the Fourth Proportional to 123,483.80, 185,268.90 and 53,413.40

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Solution

The fourth proportional to 123,483.80, 185,268.90 and 53,413.40 is: 80,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,483.80 : 185,268.90 = 53,413.40 : x
  2. Step 2: Convert to fraction form
    123,483.80/185,268.90 = 53,413.40/x
  3. Step 3: Cross multiply
    123,483.80x = 185,268.90 × 53,413.40
  4. Step 4: Simplify right side
    123,483.80x = 9,895,841,863.26
  5. Step 5: Solve for x
    x = 9,895,841,863.26/123,483.80
  6. Step 6: Final answer
    x = 80,138.79

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