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Finding the Fourth Proportional to 408,522.27, 612,783.46 and 109,003.97

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Solution

The fourth proportional to 408,522.27, 612,783.46 and 109,003.97 is: 163,505.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,522.27 : 612,783.46 = 109,003.97 : x
  2. Step 2: Convert to fraction form
    408,522.27/612,783.46 = 109,003.97/x
  3. Step 3: Cross multiply
    408,522.27x = 612,783.46 × 109,003.97
  4. Step 4: Simplify right side
    408,522.27x = 66,795,829,890.34
  5. Step 5: Solve for x
    x = 66,795,829,890.34/408,522.27
  6. Step 6: Final answer
    x = 163,505.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.