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Finding the Fourth Proportional to 78,848.30, 118,078.05 and 52,409.90

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Solution

The fourth proportional to 78,848.30, 118,078.05 and 52,409.90 is: 78,485.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,848.30 : 118,078.05 = 52,409.90 : x
  2. Step 2: Convert to fraction form
    78,848.30/118,078.05 = 52,409.90/x
  3. Step 3: Cross multiply
    78,848.30x = 118,078.05 × 52,409.90
  4. Step 4: Simplify right side
    78,848.30x = 6,188,458,792.70
  5. Step 5: Solve for x
    x = 6,188,458,792.70/78,848.30
  6. Step 6: Final answer
    x = 78,485.63

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