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Finding the Fourth Proportional to 120,235.18, 165,927.63 and 72,491.59

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Solution

The fourth proportional to 120,235.18, 165,927.63 and 72,491.59 is: 100,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,235.18 : 165,927.63 = 72,491.59 : x
  2. Step 2: Convert to fraction form
    120,235.18/165,927.63 = 72,491.59/x
  3. Step 3: Cross multiply
    120,235.18x = 165,927.63 × 72,491.59
  4. Step 4: Simplify right side
    120,235.18x = 12,028,357,723.63
  5. Step 5: Solve for x
    x = 12,028,357,723.63/120,235.18
  6. Step 6: Final answer
    x = 100,040.25

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