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Finding the Fourth Proportional to 112,398.92, 155,108.69 and 61,410.56

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Solution

The fourth proportional to 112,398.92, 155,108.69 and 61,410.56 is: 84,745.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,398.92 : 155,108.69 = 61,410.56 : x
  2. Step 2: Convert to fraction form
    112,398.92/155,108.69 = 61,410.56/x
  3. Step 3: Cross multiply
    112,398.92x = 155,108.69 × 61,410.56
  4. Step 4: Simplify right side
    112,398.92x = 9,525,310,738.22
  5. Step 5: Solve for x
    x = 9,525,310,738.22/112,398.92
  6. Step 6: Final answer
    x = 84,745.58

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