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Finding the Fourth Proportional to 117,883.20, 177,019.20 and 78,614.40

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Solution

The fourth proportional to 117,883.20, 177,019.20 and 78,614.40 is: 118,051.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,883.20 : 177,019.20 = 78,614.40 : x
  2. Step 2: Convert to fraction form
    117,883.20/177,019.20 = 78,614.40/x
  3. Step 3: Cross multiply
    117,883.20x = 177,019.20 × 78,614.40
  4. Step 4: Simplify right side
    117,883.20x = 13,916,258,196.48
  5. Step 5: Solve for x
    x = 13,916,258,196.48/117,883.20
  6. Step 6: Final answer
    x = 118,051.24

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