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Finding the Fourth Proportional to 373,475.67, 515,396.34 and 203,709.75

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Solution

The fourth proportional to 373,475.67, 515,396.34 and 203,709.75 is: 281,119.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,475.67 : 515,396.34 = 203,709.75 : x
  2. Step 2: Convert to fraction form
    373,475.67/515,396.34 = 203,709.75/x
  3. Step 3: Cross multiply
    373,475.67x = 515,396.34 × 203,709.75
  4. Step 4: Simplify right side
    373,475.67x = 104,991,259,572.32
  5. Step 5: Solve for x
    x = 104,991,259,572.32/373,475.67
  6. Step 6: Final answer
    x = 281,119.41

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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.