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Finding the Fourth Proportional to 373,681.28, 515,691.06 and 203,926.34

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Solution

The fourth proportional to 373,681.28, 515,691.06 and 203,926.34 is: 281,424.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,681.28 : 515,691.06 = 203,926.34 : x
  2. Step 2: Convert to fraction form
    373,681.28/515,691.06 = 203,926.34/x
  3. Step 3: Cross multiply
    373,681.28x = 515,691.06 × 203,926.34
  4. Step 4: Simplify right side
    373,681.28x = 105,162,990,436.52
  5. Step 5: Solve for x
    x = 105,162,990,436.52/373,681.28
  6. Step 6: Final answer
    x = 281,424.29

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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.