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Finding the Fourth Proportional to 422,520.48, 633,884.48 and 123,003.68

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Solution

The fourth proportional to 422,520.48, 633,884.48 and 123,003.68 is: 184,535.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,520.48 : 633,884.48 = 123,003.68 : x
  2. Step 2: Convert to fraction form
    422,520.48/633,884.48 = 123,003.68/x
  3. Step 3: Cross multiply
    422,520.48x = 633,884.48 × 123,003.68
  4. Step 4: Simplify right side
    422,520.48x = 77,970,123,734.89
  5. Step 5: Solve for x
    x = 77,970,123,734.89/422,520.48
  6. Step 6: Final answer
    x = 184,535.73

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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.