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Finding the Fourth Proportional to 441,167.61, 661,751.54 and 108,743.61

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Solution

The fourth proportional to 441,167.61, 661,751.54 and 108,743.61 is: 163,115.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,167.61 : 661,751.54 = 108,743.61 : x
  2. Step 2: Convert to fraction form
    441,167.61/661,751.54 = 108,743.61/x
  3. Step 3: Cross multiply
    441,167.61x = 661,751.54 × 108,743.61
  4. Step 4: Simplify right side
    441,167.61x = 71,961,250,838.94
  5. Step 5: Solve for x
    x = 71,961,250,838.94/441,167.61
  6. Step 6: Final answer
    x = 163,115.44

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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.