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Finding the Fourth Proportional to 121,631.36, 182,510.16 and 92,040.32

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Solution

The fourth proportional to 121,631.36, 182,510.16 and 92,040.32 is: 138,108.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,631.36 : 182,510.16 = 92,040.32 : x
  2. Step 2: Convert to fraction form
    121,631.36/182,510.16 = 92,040.32/x
  3. Step 3: Cross multiply
    121,631.36x = 182,510.16 × 92,040.32
  4. Step 4: Simplify right side
    121,631.36x = 16,798,293,529.65
  5. Step 5: Solve for x
    x = 16,798,293,529.65/121,631.36
  6. Step 6: Final answer
    x = 138,108.24

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