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Finding the Fourth Proportional to 78,456.06, 108,258.06 and 46,171.47

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Solution

The fourth proportional to 78,456.06, 108,258.06 and 46,171.47 is: 63,709.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,456.06 : 108,258.06 = 46,171.47 : x
  2. Step 2: Convert to fraction form
    78,456.06/108,258.06 = 46,171.47/x
  3. Step 3: Cross multiply
    78,456.06x = 108,258.06 × 46,171.47
  4. Step 4: Simplify right side
    78,456.06x = 4,998,433,769.55
  5. Step 5: Solve for x
    x = 4,998,433,769.55/78,456.06
  6. Step 6: Final answer
    x = 63,709.98

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