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Finding the Fourth Proportional to 74,328.40, 111,622.20 and 71,995.60

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Solution

The fourth proportional to 74,328.40, 111,622.20 and 71,995.60 is: 108,118.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,328.40 : 111,622.20 = 71,995.60 : x
  2. Step 2: Convert to fraction form
    74,328.40/111,622.20 = 71,995.60/x
  3. Step 3: Cross multiply
    74,328.40x = 111,622.20 × 71,995.60
  4. Step 4: Simplify right side
    74,328.40x = 8,036,307,262.32
  5. Step 5: Solve for x
    x = 8,036,307,262.32/74,328.40
  6. Step 6: Final answer
    x = 108,118.93

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