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Finding the Fourth Proportional to 297,860.89, 447,012.83 and 120,369.44

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Solution

The fourth proportional to 297,860.89, 447,012.83 and 120,369.44 is: 180,643.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,860.89 : 447,012.83 = 120,369.44 : x
  2. Step 2: Convert to fraction form
    297,860.89/447,012.83 = 120,369.44/x
  3. Step 3: Cross multiply
    297,860.89x = 447,012.83 × 120,369.44
  4. Step 4: Simplify right side
    297,860.89x = 53,806,681,183.00
  5. Step 5: Solve for x
    x = 53,806,681,183.00/297,860.89
  6. Step 6: Final answer
    x = 180,643.66

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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.