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Finding the Fourth Proportional to 111,007.20, 166,509.90 and 47,871.96

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Solution

The fourth proportional to 111,007.20, 166,509.90 and 47,871.96 is: 71,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,007.20 : 166,509.90 = 47,871.96 : x
  2. Step 2: Convert to fraction form
    111,007.20/166,509.90 = 47,871.96/x
  3. Step 3: Cross multiply
    111,007.20x = 166,509.90 × 47,871.96
  4. Step 4: Simplify right side
    111,007.20x = 7,971,155,272.40
  5. Step 5: Solve for x
    x = 7,971,155,272.40/111,007.20
  6. Step 6: Final answer
    x = 71,807.55

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