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Finding the Fourth Proportional to 373,323.69, 515,187.20 and 203,557.82

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Solution

The fourth proportional to 373,323.69, 515,187.20 and 203,557.82 is: 280,910.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,323.69 : 515,187.20 = 203,557.82 : x
  2. Step 2: Convert to fraction form
    373,323.69/515,187.20 = 203,557.82/x
  3. Step 3: Cross multiply
    373,323.69x = 515,187.20 × 203,557.82
  4. Step 4: Simplify right side
    373,323.69x = 104,870,381,256.86
  5. Step 5: Solve for x
    x = 104,870,381,256.86/373,323.69
  6. Step 6: Final answer
    x = 280,910.06

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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.