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Finding the Fourth Proportional to 127,158.60, 190,731.90 and 47,212.46

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Solution

The fourth proportional to 127,158.60, 190,731.90 and 47,212.46 is: 70,816.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,158.60 : 190,731.90 = 47,212.46 : x
  2. Step 2: Convert to fraction form
    127,158.60/190,731.90 = 47,212.46/x
  3. Step 3: Cross multiply
    127,158.60x = 190,731.90 × 47,212.46
  4. Step 4: Simplify right side
    127,158.60x = 9,004,923,210.97
  5. Step 5: Solve for x
    x = 9,004,923,210.97/127,158.60
  6. Step 6: Final answer
    x = 70,816.47

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