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Finding the Fourth Proportional to 70,626.48, 105,778.44 and 33,716.40

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Solution

The fourth proportional to 70,626.48, 105,778.44 and 33,716.40 is: 50,497.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,626.48 : 105,778.44 = 33,716.40 : x
  2. Step 2: Convert to fraction form
    70,626.48/105,778.44 = 33,716.40/x
  3. Step 3: Cross multiply
    70,626.48x = 105,778.44 × 33,716.40
  4. Step 4: Simplify right side
    70,626.48x = 3,566,468,194.42
  5. Step 5: Solve for x
    x = 3,566,468,194.42/70,626.48
  6. Step 6: Final answer
    x = 50,497.61

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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.