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Finding the Fourth Proportional to 97,798.78, 135,021.90 and 91,767.52

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Solution

The fourth proportional to 97,798.78, 135,021.90 and 91,767.52 is: 126,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,798.78 : 135,021.90 = 91,767.52 : x
  2. Step 2: Convert to fraction form
    97,798.78/135,021.90 = 91,767.52/x
  3. Step 3: Cross multiply
    97,798.78x = 135,021.90 × 91,767.52
  4. Step 4: Simplify right side
    97,798.78x = 12,390,624,908.69
  5. Step 5: Solve for x
    x = 12,390,624,908.69/97,798.78
  6. Step 6: Final answer
    x = 126,695.09

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