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Finding the Fourth Proportional to 303,340.80, 455,032.80 and 92,978.40

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Solution

The fourth proportional to 303,340.80, 455,032.80 and 92,978.40 is: 139,474.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,340.80 : 455,032.80 = 92,978.40 : x
  2. Step 2: Convert to fraction form
    303,340.80/455,032.80 = 92,978.40/x
  3. Step 3: Cross multiply
    303,340.80x = 455,032.80 × 92,978.40
  4. Step 4: Simplify right side
    303,340.80x = 42,308,221,691.52
  5. Step 5: Solve for x
    x = 42,308,221,691.52/303,340.80
  6. Step 6: Final answer
    x = 139,474.22

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