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Finding the Fourth Proportional to 373,680.41, 515,689.86 and 203,925.47

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Solution

The fourth proportional to 373,680.41, 515,689.86 and 203,925.47 is: 281,423.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,680.41 : 515,689.86 = 203,925.47 : x
  2. Step 2: Convert to fraction form
    373,680.41/515,689.86 = 203,925.47/x
  3. Step 3: Cross multiply
    373,680.41x = 515,689.86 × 203,925.47
  4. Step 4: Simplify right side
    373,680.41x = 105,162,293,476.66
  5. Step 5: Solve for x
    x = 105,162,293,476.66/373,680.41
  6. Step 6: Final answer
    x = 281,423.09

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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.