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Finding the Fourth Proportional to 123,860.76, 185,734.44 and 39,604.56

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Solution

The fourth proportional to 123,860.76, 185,734.44 and 39,604.56 is: 59,388.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,860.76 : 185,734.44 = 39,604.56 : x
  2. Step 2: Convert to fraction form
    123,860.76/185,734.44 = 39,604.56/x
  3. Step 3: Cross multiply
    123,860.76x = 185,734.44 × 39,604.56
  4. Step 4: Simplify right side
    123,860.76x = 7,355,930,773.05
  5. Step 5: Solve for x
    x = 7,355,930,773.05/123,860.76
  6. Step 6: Final answer
    x = 59,388.71

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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.