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Finding the Fourth Proportional to 126,039.64, 173,934.72 and 69,450.52

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Solution

The fourth proportional to 126,039.64, 173,934.72 and 69,450.52 is: 95,841.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,039.64 : 173,934.72 = 69,450.52 : x
  2. Step 2: Convert to fraction form
    126,039.64/173,934.72 = 69,450.52/x
  3. Step 3: Cross multiply
    126,039.64x = 173,934.72 × 69,450.52
  4. Step 4: Simplify right side
    126,039.64x = 12,079,856,750.05
  5. Step 5: Solve for x
    x = 12,079,856,750.05/126,039.64
  6. Step 6: Final answer
    x = 95,841.73

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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.