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Finding the Fourth Proportional to 373,469.58, 515,387.22 and 203,703.72

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Solution

The fourth proportional to 373,469.58, 515,387.22 and 203,703.72 is: 281,110.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,469.58 : 515,387.22 = 203,703.72 : x
  2. Step 2: Convert to fraction form
    373,469.58/515,387.22 = 203,703.72/x
  3. Step 3: Cross multiply
    373,469.58x = 515,387.22 × 203,703.72
  4. Step 4: Simplify right side
    373,469.58x = 104,986,293,954.46
  5. Step 5: Solve for x
    x = 104,986,293,954.46/373,469.58
  6. Step 6: Final answer
    x = 281,110.70

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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.