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Finding the Fourth Proportional to 156,881.56, 216,498.23 and 85,261.59

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Solution

The fourth proportional to 156,881.56, 216,498.23 and 85,261.59 is: 117,661.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,881.56 : 216,498.23 = 85,261.59 : x
  2. Step 2: Convert to fraction form
    156,881.56/216,498.23 = 85,261.59/x
  3. Step 3: Cross multiply
    156,881.56x = 216,498.23 × 85,261.59
  4. Step 4: Simplify right side
    156,881.56x = 18,458,981,813.19
  5. Step 5: Solve for x
    x = 18,458,981,813.19/156,881.56
  6. Step 6: Final answer
    x = 117,661.90

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