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Finding the Fourth Proportional to 431,050.80, 646,676.75 and 131,530.83

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Solution

The fourth proportional to 431,050.80, 646,676.75 and 131,530.83 is: 197,326.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,050.80 : 646,676.75 = 131,530.83 : x
  2. Step 2: Convert to fraction form
    431,050.80/646,676.75 = 131,530.83/x
  3. Step 3: Cross multiply
    431,050.80x = 646,676.75 × 131,530.83
  4. Step 4: Simplify right side
    431,050.80x = 85,057,929,669.20
  5. Step 5: Solve for x
    x = 85,057,929,669.20/431,050.80
  6. Step 6: Final answer
    x = 197,326.93

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