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Finding the Fourth Proportional to 57,793.50, 79,755.03 and 31,297.50

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Solution

The fourth proportional to 57,793.50, 79,755.03 and 31,297.50 is: 43,190.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,793.50 : 79,755.03 = 31,297.50 : x
  2. Step 2: Convert to fraction form
    57,793.50/79,755.03 = 31,297.50/x
  3. Step 3: Cross multiply
    57,793.50x = 79,755.03 × 31,297.50
  4. Step 4: Simplify right side
    57,793.50x = 2,496,133,051.43
  5. Step 5: Solve for x
    x = 2,496,133,051.43/57,793.50
  6. Step 6: Final answer
    x = 43,190.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.