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Finding the Fourth Proportional to 285,087.84, 427,598.88 and 74,742.48

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Solution

The fourth proportional to 285,087.84, 427,598.88 and 74,742.48 is: 112,105.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,087.84 : 427,598.88 = 74,742.48 : x
  2. Step 2: Convert to fraction form
    285,087.84/427,598.88 = 74,742.48/x
  3. Step 3: Cross multiply
    285,087.84x = 427,598.88 × 74,742.48
  4. Step 4: Simplify right side
    285,087.84x = 31,959,800,736.42
  5. Step 5: Solve for x
    x = 31,959,800,736.42/285,087.84
  6. Step 6: Final answer
    x = 112,105.10

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