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Finding the Fourth Proportional to 358,726.95, 538,121.40 and 92,485.20

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Solution

The fourth proportional to 358,726.95, 538,121.40 and 92,485.20 is: 138,735.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,726.95 : 538,121.40 = 92,485.20 : x
  2. Step 2: Convert to fraction form
    358,726.95/538,121.40 = 92,485.20/x
  3. Step 3: Cross multiply
    358,726.95x = 538,121.40 × 92,485.20
  4. Step 4: Simplify right side
    358,726.95x = 49,768,265,303.28
  5. Step 5: Solve for x
    x = 49,768,265,303.28/358,726.95
  6. Step 6: Final answer
    x = 138,735.79

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