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Finding the Fourth Proportional to 191,921.40, 288,227.70 and 185,700.60

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Solution

The fourth proportional to 191,921.40, 288,227.70 and 185,700.60 is: 278,885.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,921.40 : 288,227.70 = 185,700.60 : x
  2. Step 2: Convert to fraction form
    191,921.40/288,227.70 = 185,700.60/x
  3. Step 3: Cross multiply
    191,921.40x = 288,227.70 × 185,700.60
  4. Step 4: Simplify right side
    191,921.40x = 53,524,056,826.62
  5. Step 5: Solve for x
    x = 53,524,056,826.62/191,921.40
  6. Step 6: Final answer
    x = 278,885.30

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