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Finding the Fourth Proportional to 74,420.40, 111,630.60 and 19,016.40

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Solution

The fourth proportional to 74,420.40, 111,630.60 and 19,016.40 is: 28,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,420.40 : 111,630.60 = 19,016.40 : x
  2. Step 2: Convert to fraction form
    74,420.40/111,630.60 = 19,016.40/x
  3. Step 3: Cross multiply
    74,420.40x = 111,630.60 × 19,016.40
  4. Step 4: Simplify right side
    74,420.40x = 2,122,812,141.84
  5. Step 5: Solve for x
    x = 2,122,812,141.84/74,420.40
  6. Step 6: Final answer
    x = 28,524.60

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