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Finding the Fourth Proportional to 76,165.16, 105,107.86 and 42,631.16

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Solution

The fourth proportional to 76,165.16, 105,107.86 and 42,631.16 is: 58,830.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,165.16 : 105,107.86 = 42,631.16 : x
  2. Step 2: Convert to fraction form
    76,165.16/105,107.86 = 42,631.16/x
  3. Step 3: Cross multiply
    76,165.16x = 105,107.86 × 42,631.16
  4. Step 4: Simplify right side
    76,165.16x = 4,480,869,996.92
  5. Step 5: Solve for x
    x = 4,480,869,996.92/76,165.16
  6. Step 6: Final answer
    x = 58,830.97

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