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Finding the Fourth Proportional to 116,868.16, 161,289.40 and 69,136.86

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Solution

The fourth proportional to 116,868.16, 161,289.40 and 69,136.86 is: 95,415.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,868.16 : 161,289.40 = 69,136.86 : x
  2. Step 2: Convert to fraction form
    116,868.16/161,289.40 = 69,136.86/x
  3. Step 3: Cross multiply
    116,868.16x = 161,289.40 × 69,136.86
  4. Step 4: Simplify right side
    116,868.16x = 11,151,042,667.28
  5. Step 5: Solve for x
    x = 11,151,042,667.28/116,868.16
  6. Step 6: Final answer
    x = 95,415.57

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