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Finding the Fourth Proportional to 373,677.49, 515,685.91 and 203,922.57

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Solution

The fourth proportional to 373,677.49, 515,685.91 and 203,922.57 is: 281,419.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,677.49 : 515,685.91 = 203,922.57 : x
  2. Step 2: Convert to fraction form
    373,677.49/515,685.91 = 203,922.57/x
  3. Step 3: Cross multiply
    373,677.49x = 515,685.91 × 203,922.57
  4. Step 4: Simplify right side
    373,677.49x = 105,159,995,060.38
  5. Step 5: Solve for x
    x = 105,159,995,060.38/373,677.49
  6. Step 6: Final answer
    x = 281,419.13

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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.