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Finding the Fourth Proportional to 373,589.72, 515,553.31 and 203,823.84

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Solution

The fourth proportional to 373,589.72, 515,553.31 and 203,823.84 is: 281,276.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,589.72 : 515,553.31 = 203,823.84 : x
  2. Step 2: Convert to fraction form
    373,589.72/515,553.31 = 203,823.84/x
  3. Step 3: Cross multiply
    373,589.72x = 515,553.31 × 203,823.84
  4. Step 4: Simplify right side
    373,589.72x = 105,082,056,410.51
  5. Step 5: Solve for x
    x = 105,082,056,410.51/373,589.72
  6. Step 6: Final answer
    x = 281,276.63

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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.