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Finding the Fourth Proportional to 125,939.72, 173,797.98 and 69,351.50

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Solution

The fourth proportional to 125,939.72, 173,797.98 and 69,351.50 is: 95,705.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,939.72 : 173,797.98 = 69,351.50 : x
  2. Step 2: Convert to fraction form
    125,939.72/173,797.98 = 69,351.50/x
  3. Step 3: Cross multiply
    125,939.72x = 173,797.98 × 69,351.50
  4. Step 4: Simplify right side
    125,939.72x = 12,053,150,609.97
  5. Step 5: Solve for x
    x = 12,053,150,609.97/125,939.72
  6. Step 6: Final answer
    x = 95,705.71

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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.