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Finding the Fourth Proportional to 76,334.78, 105,343.69 and 42,342.16

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Solution

The fourth proportional to 76,334.78, 105,343.69 and 42,342.16 is: 58,433.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,334.78 : 105,343.69 = 42,342.16 : x
  2. Step 2: Convert to fraction form
    76,334.78/105,343.69 = 42,342.16/x
  3. Step 3: Cross multiply
    76,334.78x = 105,343.69 × 42,342.16
  4. Step 4: Simplify right side
    76,334.78x = 4,460,479,376.97
  5. Step 5: Solve for x
    x = 4,460,479,376.97/76,334.78
  6. Step 6: Final answer
    x = 58,433.12

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