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Finding the Fourth Proportional to 231,595.80, 347,409.90 and 91,336.20

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Solution

The fourth proportional to 231,595.80, 347,409.90 and 91,336.20 is: 137,010.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,595.80 : 347,409.90 = 91,336.20 : x
  2. Step 2: Convert to fraction form
    231,595.80/347,409.90 = 91,336.20/x
  3. Step 3: Cross multiply
    231,595.80x = 347,409.90 × 91,336.20
  4. Step 4: Simplify right side
    231,595.80x = 31,731,100,108.38
  5. Step 5: Solve for x
    x = 31,731,100,108.38/231,595.80
  6. Step 6: Final answer
    x = 137,010.69

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