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Finding the Fourth Proportional to 358,481.80, 537,722.67 and 109,163.80

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Solution

The fourth proportional to 358,481.80, 537,722.67 and 109,163.80 is: 163,745.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,481.80 : 537,722.67 = 109,163.80 : x
  2. Step 2: Convert to fraction form
    358,481.80/537,722.67 = 109,163.80/x
  3. Step 3: Cross multiply
    358,481.80x = 537,722.67 × 109,163.80
  4. Step 4: Simplify right side
    358,481.80x = 58,699,850,003.35
  5. Step 5: Solve for x
    x = 58,699,850,003.35/358,481.80
  6. Step 6: Final answer
    x = 163,745.69

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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.