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Finding the Fourth Proportional to 112,826.88, 155,694.92 and 61,830.40

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Solution

The fourth proportional to 112,826.88, 155,694.92 and 61,830.40 is: 85,322.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,826.88 : 155,694.92 = 61,830.40 : x
  2. Step 2: Convert to fraction form
    112,826.88/155,694.92 = 61,830.40/x
  3. Step 3: Cross multiply
    112,826.88x = 155,694.92 × 61,830.40
  4. Step 4: Simplify right side
    112,826.88x = 9,626,679,181.57
  5. Step 5: Solve for x
    x = 9,626,679,181.57/112,826.88
  6. Step 6: Final answer
    x = 85,322.57

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