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Finding the Fourth Proportional to 99,406.26, 137,128.34 and 59,091.35

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Solution

The fourth proportional to 99,406.26, 137,128.34 and 59,091.35 is: 81,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,406.26 : 137,128.34 = 59,091.35 : x
  2. Step 2: Convert to fraction form
    99,406.26/137,128.34 = 59,091.35/x
  3. Step 3: Cross multiply
    99,406.26x = 137,128.34 × 59,091.35
  4. Step 4: Simplify right side
    99,406.26x = 8,103,098,195.95
  5. Step 5: Solve for x
    x = 8,103,098,195.95/99,406.26
  6. Step 6: Final answer
    x = 81,514.97

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