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Finding the Fourth Proportional to 297,186.81, 445,778.67 and 72,548.43

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Solution

The fourth proportional to 297,186.81, 445,778.67 and 72,548.43 is: 108,822.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,186.81 : 445,778.67 = 72,548.43 : x
  2. Step 2: Convert to fraction form
    297,186.81/445,778.67 = 72,548.43/x
  3. Step 3: Cross multiply
    297,186.81x = 445,778.67 × 72,548.43
  4. Step 4: Simplify right side
    297,186.81x = 32,340,542,635.99
  5. Step 5: Solve for x
    x = 32,340,542,635.99/297,186.81
  6. Step 6: Final answer
    x = 108,822.27

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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.