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Finding the Fourth Proportional to 100,355.72, 150,544.50 and 44,171.68

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Solution

The fourth proportional to 100,355.72, 150,544.50 and 44,171.68 is: 66,262.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,355.72 : 150,544.50 = 44,171.68 : x
  2. Step 2: Convert to fraction form
    100,355.72/150,544.50 = 44,171.68/x
  3. Step 3: Cross multiply
    100,355.72x = 150,544.50 × 44,171.68
  4. Step 4: Simplify right side
    100,355.72x = 6,649,803,479.76
  5. Step 5: Solve for x
    x = 6,649,803,479.76/100,355.72
  6. Step 6: Final answer
    x = 66,262.33

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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.