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Finding the Fourth Proportional to 159,609.42, 220,262.49 and 87,992.01

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Solution

The fourth proportional to 159,609.42, 220,262.49 and 87,992.01 is: 121,429.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,609.42 : 220,262.49 = 87,992.01 : x
  2. Step 2: Convert to fraction form
    159,609.42/220,262.49 = 87,992.01/x
  3. Step 3: Cross multiply
    159,609.42x = 220,262.49 × 87,992.01
  4. Step 4: Simplify right side
    159,609.42x = 19,381,339,222.70
  5. Step 5: Solve for x
    x = 19,381,339,222.70/159,609.42
  6. Step 6: Final answer
    x = 121,429.80

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