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Finding the Fourth Proportional to 92,797.97, 128,116.20 and 61,021.67

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Solution

The fourth proportional to 92,797.97, 128,116.20 and 61,021.67 is: 84,246.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,797.97 : 128,116.20 = 61,021.67 : x
  2. Step 2: Convert to fraction form
    92,797.97/128,116.20 = 61,021.67/x
  3. Step 3: Cross multiply
    92,797.97x = 128,116.20 × 61,021.67
  4. Step 4: Simplify right side
    92,797.97x = 7,817,864,478.05
  5. Step 5: Solve for x
    x = 7,817,864,478.05/92,797.97
  6. Step 6: Final answer
    x = 84,246.07

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