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Finding the Fourth Proportional to 373,680.91, 515,690.55 and 203,925.97

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Solution

The fourth proportional to 373,680.91, 515,690.55 and 203,925.97 is: 281,423.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,680.91 : 515,690.55 = 203,925.97 : x
  2. Step 2: Convert to fraction form
    373,680.91/515,690.55 = 203,925.97/x
  3. Step 3: Cross multiply
    373,680.91x = 515,690.55 × 203,925.97
  4. Step 4: Simplify right side
    373,680.91x = 105,162,692,030.50
  5. Step 5: Solve for x
    x = 105,162,692,030.50/373,680.91
  6. Step 6: Final answer
    x = 281,423.78

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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.