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Finding the Fourth Proportional to 347,173.12, 479,100.72 and 202,064.86

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Solution

The fourth proportional to 347,173.12, 479,100.72 and 202,064.86 is: 278,850.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,173.12 : 479,100.72 = 202,064.86 : x
  2. Step 2: Convert to fraction form
    347,173.12/479,100.72 = 202,064.86/x
  3. Step 3: Cross multiply
    347,173.12x = 479,100.72 × 202,064.86
  4. Step 4: Simplify right side
    347,173.12x = 96,809,419,912.70
  5. Step 5: Solve for x
    x = 96,809,419,912.70/347,173.12
  6. Step 6: Final answer
    x = 278,850.56

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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.