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Finding the Fourth Proportional to 76,147.84, 105,084.24 and 42,613.84

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Solution

The fourth proportional to 76,147.84, 105,084.24 and 42,613.84 is: 58,807.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,147.84 : 105,084.24 = 42,613.84 : x
  2. Step 2: Convert to fraction form
    76,147.84/105,084.24 = 42,613.84/x
  3. Step 3: Cross multiply
    76,147.84x = 105,084.24 × 42,613.84
  4. Step 4: Simplify right side
    76,147.84x = 4,478,042,989.88
  5. Step 5: Solve for x
    x = 4,478,042,989.88/76,147.84
  6. Step 6: Final answer
    x = 58,807.22

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