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Finding the Fourth Proportional to 74,932.80, 112,381.20 and 43,274.40

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Solution

The fourth proportional to 74,932.80, 112,381.20 and 43,274.40 is: 64,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,932.80 : 112,381.20 = 43,274.40 : x
  2. Step 2: Convert to fraction form
    74,932.80/112,381.20 = 43,274.40/x
  3. Step 3: Cross multiply
    74,932.80x = 112,381.20 × 43,274.40
  4. Step 4: Simplify right side
    74,932.80x = 4,863,229,001.28
  5. Step 5: Solve for x
    x = 4,863,229,001.28/74,932.80
  6. Step 6: Final answer
    x = 64,901.20

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