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Finding the Fourth Proportional to 373,505.58, 515,439.27 and 203,743.26

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Solution

The fourth proportional to 373,505.58, 515,439.27 and 203,743.26 is: 281,166.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,505.58 : 515,439.27 = 203,743.26 : x
  2. Step 2: Convert to fraction form
    373,505.58/515,439.27 = 203,743.26/x
  3. Step 3: Cross multiply
    373,505.58x = 515,439.27 × 203,743.26
  4. Step 4: Simplify right side
    373,505.58x = 105,017,277,201.82
  5. Step 5: Solve for x
    x = 105,017,277,201.82/373,505.58
  6. Step 6: Final answer
    x = 281,166.55

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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.