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Finding the Fourth Proportional to 66,469.20, 99,703.80 and 38,475.60

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Solution

The fourth proportional to 66,469.20, 99,703.80 and 38,475.60 is: 57,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,469.20 : 99,703.80 = 38,475.60 : x
  2. Step 2: Convert to fraction form
    66,469.20/99,703.80 = 38,475.60/x
  3. Step 3: Cross multiply
    66,469.20x = 99,703.80 × 38,475.60
  4. Step 4: Simplify right side
    66,469.20x = 3,836,163,527.28
  5. Step 5: Solve for x
    x = 3,836,163,527.28/66,469.20
  6. Step 6: Final answer
    x = 57,713.40

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