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Finding the Fourth Proportional to 105,056.58, 144,975.65 and 57,311.61

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Solution

The fourth proportional to 105,056.58, 144,975.65 and 57,311.61 is: 79,088.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,056.58 : 144,975.65 = 57,311.61 : x
  2. Step 2: Convert to fraction form
    105,056.58/144,975.65 = 57,311.61/x
  3. Step 3: Cross multiply
    105,056.58x = 144,975.65 × 57,311.61
  4. Step 4: Simplify right side
    105,056.58x = 8,308,787,912.30
  5. Step 5: Solve for x
    x = 8,308,787,912.30/105,056.58
  6. Step 6: Final answer
    x = 79,088.70

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