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Finding the Fourth Proportional to 99,487.63, 137,289.09 and 54,164.08

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Solution

The fourth proportional to 99,487.63, 137,289.09 and 54,164.08 is: 74,744.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,487.63 : 137,289.09 = 54,164.08 : x
  2. Step 2: Convert to fraction form
    99,487.63/137,289.09 = 54,164.08/x
  3. Step 3: Cross multiply
    99,487.63x = 137,289.09 × 54,164.08
  4. Step 4: Simplify right side
    99,487.63x = 7,436,137,253.89
  5. Step 5: Solve for x
    x = 7,436,137,253.89/99,487.63
  6. Step 6: Final answer
    x = 74,744.34

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