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Finding the Fourth Proportional to 117,643.20, 176,061.60 and 70,929.60

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Solution

The fourth proportional to 117,643.20, 176,061.60 and 70,929.60 is: 106,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,643.20 : 176,061.60 = 70,929.60 : x
  2. Step 2: Convert to fraction form
    117,643.20/176,061.60 = 70,929.60/x
  3. Step 3: Cross multiply
    117,643.20x = 176,061.60 × 70,929.60
  4. Step 4: Simplify right side
    117,643.20x = 12,487,978,863.36
  5. Step 5: Solve for x
    x = 12,487,978,863.36/117,643.20
  6. Step 6: Final answer
    x = 106,151.30

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