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Finding the Fourth Proportional to 144,040.47, 198,775.86 and 79,509.72

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Solution

The fourth proportional to 144,040.47, 198,775.86 and 79,509.72 is: 109,723.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,040.47 : 198,775.86 = 79,509.72 : x
  2. Step 2: Convert to fraction form
    144,040.47/198,775.86 = 79,509.72/x
  3. Step 3: Cross multiply
    144,040.47x = 198,775.86 × 79,509.72
  4. Step 4: Simplify right side
    144,040.47x = 15,804,612,971.36
  5. Step 5: Solve for x
    x = 15,804,612,971.36/144,040.47
  6. Step 6: Final answer
    x = 109,723.42

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