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Finding the Fourth Proportional to 86,520.18, 129,779.48 and 27,355.88

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Solution

The fourth proportional to 86,520.18, 129,779.48 and 27,355.88 is: 41,033.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,520.18 : 129,779.48 = 27,355.88 : x
  2. Step 2: Convert to fraction form
    86,520.18/129,779.48 = 27,355.88/x
  3. Step 3: Cross multiply
    86,520.18x = 129,779.48 × 27,355.88
  4. Step 4: Simplify right side
    86,520.18x = 3,550,231,881.34
  5. Step 5: Solve for x
    x = 3,550,231,881.34/86,520.18
  6. Step 6: Final answer
    x = 41,033.57

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