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Finding the Fourth Proportional to 55,167.96, 82,751.82 and 20,093.28

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Solution

The fourth proportional to 55,167.96, 82,751.82 and 20,093.28 is: 30,139.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,167.96 : 82,751.82 = 20,093.28 : x
  2. Step 2: Convert to fraction form
    55,167.96/82,751.82 = 20,093.28/x
  3. Step 3: Cross multiply
    55,167.96x = 82,751.82 × 20,093.28
  4. Step 4: Simplify right side
    55,167.96x = 1,662,755,489.77
  5. Step 5: Solve for x
    x = 1,662,755,489.77/55,167.96
  6. Step 6: Final answer
    x = 30,139.88

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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.