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Finding the Fourth Proportional to 373,251.19, 515,086.34 and 203,485.31

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Solution

The fourth proportional to 373,251.19, 515,086.34 and 203,485.31 is: 280,809.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,251.19 : 515,086.34 = 203,485.31 : x
  2. Step 2: Convert to fraction form
    373,251.19/515,086.34 = 203,485.31/x
  3. Step 3: Cross multiply
    373,251.19x = 515,086.34 × 203,485.31
  4. Step 4: Simplify right side
    373,251.19x = 104,812,505,952.35
  5. Step 5: Solve for x
    x = 104,812,505,952.35/373,251.19
  6. Step 6: Final answer
    x = 280,809.57

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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.