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Finding the Fourth Proportional to 74,912.80, 103,501.20 and 74,175.52

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Solution

The fourth proportional to 74,912.80, 103,501.20 and 74,175.52 is: 102,482.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,912.80 : 103,501.20 = 74,175.52 : x
  2. Step 2: Convert to fraction form
    74,912.80/103,501.20 = 74,175.52/x
  3. Step 3: Cross multiply
    74,912.80x = 103,501.20 × 74,175.52
  4. Step 4: Simplify right side
    74,912.80x = 7,677,255,330.62
  5. Step 5: Solve for x
    x = 7,677,255,330.62/74,912.80
  6. Step 6: Final answer
    x = 102,482.56

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