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Finding the Fourth Proportional to 99,479.11, 137,276.70 and 54,155.93

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Solution

The fourth proportional to 99,479.11, 137,276.70 and 54,155.93 is: 74,732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,479.11 : 137,276.70 = 54,155.93 : x
  2. Step 2: Convert to fraction form
    99,479.11/137,276.70 = 54,155.93/x
  3. Step 3: Cross multiply
    99,479.11x = 137,276.70 × 54,155.93
  4. Step 4: Simplify right side
    99,479.11x = 7,434,347,355.83
  5. Step 5: Solve for x
    x = 7,434,347,355.83/99,479.11
  6. Step 6: Final answer
    x = 74,732.75

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