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Finding the Fourth Proportional to 441,137.25, 661,705.88 and 108,713.25

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Solution

The fourth proportional to 441,137.25, 661,705.88 and 108,713.25 is: 163,069.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,137.25 : 661,705.88 = 108,713.25 : x
  2. Step 2: Convert to fraction form
    441,137.25/661,705.88 = 108,713.25/x
  3. Step 3: Cross multiply
    441,137.25x = 661,705.88 × 108,713.25
  4. Step 4: Simplify right side
    441,137.25x = 71,936,196,215.34
  5. Step 5: Solve for x
    x = 71,936,196,215.34/441,137.25
  6. Step 6: Final answer
    x = 163,069.88

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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.