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Finding the Fourth Proportional to 104,152.97, 143,745.41 and 63,859.61

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Solution

The fourth proportional to 104,152.97, 143,745.41 and 63,859.61 is: 88,135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,152.97 : 143,745.41 = 63,859.61 : x
  2. Step 2: Convert to fraction form
    104,152.97/143,745.41 = 63,859.61/x
  3. Step 3: Cross multiply
    104,152.97x = 143,745.41 × 63,859.61
  4. Step 4: Simplify right side
    104,152.97x = 9,179,525,821.89
  5. Step 5: Solve for x
    x = 9,179,525,821.89/104,152.97
  6. Step 6: Final answer
    x = 88,135.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.