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Finding the Fourth Proportional to 156,627.85, 216,146.64 and 85,007.87

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Solution

The fourth proportional to 156,627.85, 216,146.64 and 85,007.87 is: 117,310.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,627.85 : 216,146.64 = 85,007.87 : x
  2. Step 2: Convert to fraction form
    156,627.85/216,146.64 = 85,007.87/x
  3. Step 3: Cross multiply
    156,627.85x = 216,146.64 × 85,007.87
  4. Step 4: Simplify right side
    156,627.85x = 18,374,165,203.87
  5. Step 5: Solve for x
    x = 18,374,165,203.87/156,627.85
  6. Step 6: Final answer
    x = 117,310.97

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