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Finding the Fourth Proportional to 78,829.12, 118,262.88 and 23,425.12

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Solution

The fourth proportional to 78,829.12, 118,262.88 and 23,425.12 is: 35,143.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,829.12 : 118,262.88 = 23,425.12 : x
  2. Step 2: Convert to fraction form
    78,829.12/118,262.88 = 23,425.12/x
  3. Step 3: Cross multiply
    78,829.12x = 118,262.88 × 23,425.12
  4. Step 4: Simplify right side
    78,829.12x = 2,770,322,155.55
  5. Step 5: Solve for x
    x = 2,770,322,155.55/78,829.12
  6. Step 6: Final answer
    x = 35,143.39

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