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Finding the Fourth Proportional to 125,874.37, 173,723.21 and 75,576.61

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Solution

The fourth proportional to 125,874.37, 173,723.21 and 75,576.61 is: 104,305.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,874.37 : 173,723.21 = 75,576.61 : x
  2. Step 2: Convert to fraction form
    125,874.37/173,723.21 = 75,576.61/x
  3. Step 3: Cross multiply
    125,874.37x = 173,723.21 × 75,576.61
  4. Step 4: Simplify right side
    125,874.37x = 13,129,410,610.44
  5. Step 5: Solve for x
    x = 13,129,410,610.44/125,874.37
  6. Step 6: Final answer
    x = 104,305.68

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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.