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Finding the Fourth Proportional to 108,662.40, 163,029.11 and 52,508.97

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Solution

The fourth proportional to 108,662.40, 163,029.11 and 52,508.97 is: 78,780.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,662.40 : 163,029.11 = 52,508.97 : x
  2. Step 2: Convert to fraction form
    108,662.40/163,029.11 = 52,508.97/x
  3. Step 3: Cross multiply
    108,662.40x = 163,029.11 × 52,508.97
  4. Step 4: Simplify right side
    108,662.40x = 8,560,490,383.57
  5. Step 5: Solve for x
    x = 8,560,490,383.57/108,662.40
  6. Step 6: Final answer
    x = 78,780.61

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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.