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Finding the Fourth Proportional to 373,508.91, 515,441.22 and 203,741.82

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Solution

The fourth proportional to 373,508.91, 515,441.22 and 203,741.82 is: 281,163.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,508.91 : 515,441.22 = 203,741.82 : x
  2. Step 2: Convert to fraction form
    373,508.91/515,441.22 = 203,741.82/x
  3. Step 3: Cross multiply
    373,508.91x = 515,441.22 × 203,741.82
  4. Step 4: Simplify right side
    373,508.91x = 105,016,932,265.82
  5. Step 5: Solve for x
    x = 105,016,932,265.82/373,508.91
  6. Step 6: Final answer
    x = 281,163.12

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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.