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Finding the Fourth Proportional to 161,543.20, 242,217.60 and 82,811.20

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Solution

The fourth proportional to 161,543.20, 242,217.60 and 82,811.20 is: 124,166.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,543.20 : 242,217.60 = 82,811.20 : x
  2. Step 2: Convert to fraction form
    161,543.20/242,217.60 = 82,811.20/x
  3. Step 3: Cross multiply
    161,543.20x = 242,217.60 × 82,811.20
  4. Step 4: Simplify right side
    161,543.20x = 20,058,330,117.12
  5. Step 5: Solve for x
    x = 20,058,330,117.12/161,543.20
  6. Step 6: Final answer
    x = 124,166.97

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