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Finding the Fourth Proportional to 186,340.64, 279,362.86 and 81,085.79

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Solution

The fourth proportional to 186,340.64, 279,362.86 and 81,085.79 is: 121,564.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,340.64 : 279,362.86 = 81,085.79 : x
  2. Step 2: Convert to fraction form
    186,340.64/279,362.86 = 81,085.79/x
  3. Step 3: Cross multiply
    186,340.64x = 279,362.86 × 81,085.79
  4. Step 4: Simplify right side
    186,340.64x = 22,652,358,695.45
  5. Step 5: Solve for x
    x = 22,652,358,695.45/186,340.64
  6. Step 6: Final answer
    x = 121,564.25

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