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Finding the Fourth Proportional to 70,363.44, 105,558.44 and 28,246.81

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Solution

The fourth proportional to 70,363.44, 105,558.44 and 28,246.81 is: 42,375.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,363.44 : 105,558.44 = 28,246.81 : x
  2. Step 2: Convert to fraction form
    70,363.44/105,558.44 = 28,246.81/x
  3. Step 3: Cross multiply
    70,363.44x = 105,558.44 × 28,246.81
  4. Step 4: Simplify right side
    70,363.44x = 2,981,689,198.58
  5. Step 5: Solve for x
    x = 2,981,689,198.58/70,363.44
  6. Step 6: Final answer
    x = 42,375.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.