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Finding the Fourth Proportional to 303,889.44, 455,834.52 and 79,249.68

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Solution

The fourth proportional to 303,889.44, 455,834.52 and 79,249.68 is: 118,874.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,889.44 : 455,834.52 = 79,249.68 : x
  2. Step 2: Convert to fraction form
    303,889.44/455,834.52 = 79,249.68/x
  3. Step 3: Cross multiply
    303,889.44x = 455,834.52 × 79,249.68
  4. Step 4: Simplify right side
    303,889.44x = 36,124,739,842.95
  5. Step 5: Solve for x
    x = 36,124,739,842.95/303,889.44
  6. Step 6: Final answer
    x = 118,874.61

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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.