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Finding the Fourth Proportional to 373,940.20, 561,104.70 and 163,599.40

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Solution

The fourth proportional to 373,940.20, 561,104.70 and 163,599.40 is: 245,484.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,940.20 : 561,104.70 = 163,599.40 : x
  2. Step 2: Convert to fraction form
    373,940.20/561,104.70 = 163,599.40/x
  3. Step 3: Cross multiply
    373,940.20x = 561,104.70 × 163,599.40
  4. Step 4: Simplify right side
    373,940.20x = 91,796,392,257.18
  5. Step 5: Solve for x
    x = 91,796,392,257.18/373,940.20
  6. Step 6: Final answer
    x = 245,484.15

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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.