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Finding the Fourth Proportional to 83,871.12, 125,779.68 and 27,698.16

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Solution

The fourth proportional to 83,871.12, 125,779.68 and 27,698.16 is: 41,538.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,871.12 : 125,779.68 = 27,698.16 : x
  2. Step 2: Convert to fraction form
    83,871.12/125,779.68 = 27,698.16/x
  3. Step 3: Cross multiply
    83,871.12x = 125,779.68 × 27,698.16
  4. Step 4: Simplify right side
    83,871.12x = 3,483,865,701.39
  5. Step 5: Solve for x
    x = 3,483,865,701.39/83,871.12
  6. Step 6: Final answer
    x = 41,538.32

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