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Finding the Fourth Proportional to 123,468.77, 185,183.84 and 39,217.85

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Solution

The fourth proportional to 123,468.77, 185,183.84 and 39,217.85 is: 58,820.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,468.77 : 185,183.84 = 39,217.85 : x
  2. Step 2: Convert to fraction form
    123,468.77/185,183.84 = 39,217.85/x
  3. Step 3: Cross multiply
    123,468.77x = 185,183.84 × 39,217.85
  4. Step 4: Simplify right side
    123,468.77x = 7,262,510,937.54
  5. Step 5: Solve for x
    x = 7,262,510,937.54/123,468.77
  6. Step 6: Final answer
    x = 58,820.63

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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.