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Finding the Fourth Proportional to 71,053.38, 106,540.83 and 28,922.63

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Solution

The fourth proportional to 71,053.38, 106,540.83 and 28,922.63 is: 43,367.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,053.38 : 106,540.83 = 28,922.63 : x
  2. Step 2: Convert to fraction form
    71,053.38/106,540.83 = 28,922.63/x
  3. Step 3: Cross multiply
    71,053.38x = 106,540.83 × 28,922.63
  4. Step 4: Simplify right side
    71,053.38x = 3,081,440,473.28
  5. Step 5: Solve for x
    x = 3,081,440,473.28/71,053.38
  6. Step 6: Final answer
    x = 43,367.96

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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.