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Finding the Fourth Proportional to 119,210.46, 178,579.53 and 81,678.30

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Solution

The fourth proportional to 119,210.46, 178,579.53 and 81,678.30 is: 122,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,210.46 : 178,579.53 = 81,678.30 : x
  2. Step 2: Convert to fraction form
    119,210.46/178,579.53 = 81,678.30/x
  3. Step 3: Cross multiply
    119,210.46x = 178,579.53 × 81,678.30
  4. Step 4: Simplify right side
    119,210.46x = 14,586,072,425.20
  5. Step 5: Solve for x
    x = 14,586,072,425.20/119,210.46
  6. Step 6: Final answer
    x = 122,355.64

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