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Finding the Fourth Proportional to 172,567.40, 258,851.10 and 165,039.80

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Solution

The fourth proportional to 172,567.40, 258,851.10 and 165,039.80 is: 247,559.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,567.40 : 258,851.10 = 165,039.80 : x
  2. Step 2: Convert to fraction form
    172,567.40/258,851.10 = 165,039.80/x
  3. Step 3: Cross multiply
    172,567.40x = 258,851.10 × 165,039.80
  4. Step 4: Simplify right side
    172,567.40x = 42,720,733,773.78
  5. Step 5: Solve for x
    x = 42,720,733,773.78/172,567.40
  6. Step 6: Final answer
    x = 247,559.70

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