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Finding the Fourth Proportional to 108,269.20, 162,403.80 and 70,944.40

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Solution

The fourth proportional to 108,269.20, 162,403.80 and 70,944.40 is: 106,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,269.20 : 162,403.80 = 70,944.40 : x
  2. Step 2: Convert to fraction form
    108,269.20/162,403.80 = 70,944.40/x
  3. Step 3: Cross multiply
    108,269.20x = 162,403.80 × 70,944.40
  4. Step 4: Simplify right side
    108,269.20x = 11,521,640,148.72
  5. Step 5: Solve for x
    x = 11,521,640,148.72/108,269.20
  6. Step 6: Final answer
    x = 106,416.60

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