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Finding the Fourth Proportional to 78,981.21, 118,459.06 and 29,048.96

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Solution

The fourth proportional to 78,981.21, 118,459.06 and 29,048.96 is: 43,568.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,981.21 : 118,459.06 = 29,048.96 : x
  2. Step 2: Convert to fraction form
    78,981.21/118,459.06 = 29,048.96/x
  3. Step 3: Cross multiply
    78,981.21x = 118,459.06 × 29,048.96
  4. Step 4: Simplify right side
    78,981.21x = 3,441,112,719.10
  5. Step 5: Solve for x
    x = 3,441,112,719.10/78,981.21
  6. Step 6: Final answer
    x = 43,568.75

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