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Finding the Fourth Proportional to 99,229.12, 136,936.36 and 53,907.28

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Solution

The fourth proportional to 99,229.12, 136,936.36 and 53,907.28 is: 74,392.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,229.12 : 136,936.36 = 53,907.28 : x
  2. Step 2: Convert to fraction form
    99,229.12/136,936.36 = 53,907.28/x
  3. Step 3: Cross multiply
    99,229.12x = 136,936.36 × 53,907.28
  4. Step 4: Simplify right side
    99,229.12x = 7,381,866,700.70
  5. Step 5: Solve for x
    x = 7,381,866,700.70/99,229.12
  6. Step 6: Final answer
    x = 74,392.14

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