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Finding the Fourth Proportional to 91,868.36, 126,792.20 and 56,079.20

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Solution

The fourth proportional to 91,868.36, 126,792.20 and 56,079.20 is: 77,397.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,868.36 : 126,792.20 = 56,079.20 : x
  2. Step 2: Convert to fraction form
    91,868.36/126,792.20 = 56,079.20/x
  3. Step 3: Cross multiply
    91,868.36x = 126,792.20 × 56,079.20
  4. Step 4: Simplify right side
    91,868.36x = 7,110,405,142.24
  5. Step 5: Solve for x
    x = 7,110,405,142.24/91,868.36
  6. Step 6: Final answer
    x = 77,397.76

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