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Finding the Fourth Proportional to 361,216.09, 541,897.03 and 108,511.88

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Solution

The fourth proportional to 361,216.09, 541,897.03 and 108,511.88 is: 162,789.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,216.09 : 541,897.03 = 108,511.88 : x
  2. Step 2: Convert to fraction form
    361,216.09/541,897.03 = 108,511.88/x
  3. Step 3: Cross multiply
    361,216.09x = 541,897.03 × 108,511.88
  4. Step 4: Simplify right side
    361,216.09x = 58,802,265,491.72
  5. Step 5: Solve for x
    x = 58,802,265,491.72/361,216.09
  6. Step 6: Final answer
    x = 162,789.72

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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.