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Finding the Fourth Proportional to 91,707.46, 126,502.54 and 57,661.99

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Solution

The fourth proportional to 91,707.46, 126,502.54 and 57,661.99 is: 79,539.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,707.46 : 126,502.54 = 57,661.99 : x
  2. Step 2: Convert to fraction form
    91,707.46/126,502.54 = 57,661.99/x
  3. Step 3: Cross multiply
    91,707.46x = 126,502.54 × 57,661.99
  4. Step 4: Simplify right side
    91,707.46x = 7,294,387,736.04
  5. Step 5: Solve for x
    x = 7,294,387,736.04/91,707.46
  6. Step 6: Final answer
    x = 79,539.74

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