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Finding the Fourth Proportional to 55,855.50, 77,080.59 and 30,704.46

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Solution

The fourth proportional to 55,855.50, 77,080.59 and 30,704.46 is: 42,372.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,855.50 : 77,080.59 = 30,704.46 : x
  2. Step 2: Convert to fraction form
    55,855.50/77,080.59 = 30,704.46/x
  3. Step 3: Cross multiply
    55,855.50x = 77,080.59 × 30,704.46
  4. Step 4: Simplify right side
    55,855.50x = 2,366,717,892.43
  5. Step 5: Solve for x
    x = 2,366,717,892.43/55,855.50
  6. Step 6: Final answer
    x = 42,372.15

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