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Finding the Fourth Proportional to 78,450.64, 117,609.82 and 34,043.94

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Solution

The fourth proportional to 78,450.64, 117,609.82 and 34,043.94 is: 51,037.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,450.64 : 117,609.82 = 34,043.94 : x
  2. Step 2: Convert to fraction form
    78,450.64/117,609.82 = 34,043.94/x
  3. Step 3: Cross multiply
    78,450.64x = 117,609.82 × 34,043.94
  4. Step 4: Simplify right side
    78,450.64x = 4,003,901,570.38
  5. Step 5: Solve for x
    x = 4,003,901,570.38/78,450.64
  6. Step 6: Final answer
    x = 51,037.21

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