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Finding the Fourth Proportional to 354,140.40, 531,210.60 and 228,169.20

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Solution

The fourth proportional to 354,140.40, 531,210.60 and 228,169.20 is: 342,253.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,140.40 : 531,210.60 = 228,169.20 : x
  2. Step 2: Convert to fraction form
    354,140.40/531,210.60 = 228,169.20/x
  3. Step 3: Cross multiply
    354,140.40x = 531,210.60 × 228,169.20
  4. Step 4: Simplify right side
    354,140.40x = 121,205,897,633.52
  5. Step 5: Solve for x
    x = 121,205,897,633.52/354,140.40
  6. Step 6: Final answer
    x = 342,253.80

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