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Finding the Fourth Proportional to 165,306.80, 247,960.20 and 155,457.20

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Solution

The fourth proportional to 165,306.80, 247,960.20 and 155,457.20 is: 233,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,306.80 : 247,960.20 = 155,457.20 : x
  2. Step 2: Convert to fraction form
    165,306.80/247,960.20 = 155,457.20/x
  3. Step 3: Cross multiply
    165,306.80x = 247,960.20 × 155,457.20
  4. Step 4: Simplify right side
    165,306.80x = 38,547,198,403.44
  5. Step 5: Solve for x
    x = 38,547,198,403.44/165,306.80
  6. Step 6: Final answer
    x = 233,185.80

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