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Finding the Fourth Proportional to 234,642.78, 351,977.86 and 90,549.36

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Solution

The fourth proportional to 234,642.78, 351,977.86 and 90,549.36 is: 135,829.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,642.78 : 351,977.86 = 90,549.36 : x
  2. Step 2: Convert to fraction form
    234,642.78/351,977.86 = 90,549.36/x
  3. Step 3: Cross multiply
    234,642.78x = 351,977.86 × 90,549.36
  4. Step 4: Simplify right side
    234,642.78x = 31,871,369,957.17
  5. Step 5: Solve for x
    x = 31,871,369,957.17/234,642.78
  6. Step 6: Final answer
    x = 135,829.32

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