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Finding the Fourth Proportional to 83,788.58, 125,681.79 and 20,609.24

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Solution

The fourth proportional to 83,788.58, 125,681.79 and 20,609.24 is: 30,913.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,788.58 : 125,681.79 = 20,609.24 : x
  2. Step 2: Convert to fraction form
    83,788.58/125,681.79 = 20,609.24/x
  3. Step 3: Cross multiply
    83,788.58x = 125,681.79 × 20,609.24
  4. Step 4: Simplify right side
    83,788.58x = 2,590,206,173.74
  5. Step 5: Solve for x
    x = 2,590,206,173.74/83,788.58
  6. Step 6: Final answer
    x = 30,913.59

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