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Finding the Fourth Proportional to 120,451.64, 166,228.97 and 72,703.98

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Solution

The fourth proportional to 120,451.64, 166,228.97 and 72,703.98 is: 100,334.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,451.64 : 166,228.97 = 72,703.98 : x
  2. Step 2: Convert to fraction form
    120,451.64/166,228.97 = 72,703.98/x
  3. Step 3: Cross multiply
    120,451.64x = 166,228.97 × 72,703.98
  4. Step 4: Simplify right side
    120,451.64x = 12,085,507,346.78
  5. Step 5: Solve for x
    x = 12,085,507,346.78/120,451.64
  6. Step 6: Final answer
    x = 100,334.94

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