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Finding the Fourth Proportional to 74,910.80, 112,366.20 and 19,506.80

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Solution

The fourth proportional to 74,910.80, 112,366.20 and 19,506.80 is: 29,260.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,910.80 : 112,366.20 = 19,506.80 : x
  2. Step 2: Convert to fraction form
    74,910.80/112,366.20 = 19,506.80/x
  3. Step 3: Cross multiply
    74,910.80x = 112,366.20 × 19,506.80
  4. Step 4: Simplify right side
    74,910.80x = 2,191,904,990.16
  5. Step 5: Solve for x
    x = 2,191,904,990.16/74,910.80
  6. Step 6: Final answer
    x = 29,260.20

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