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Finding the Fourth Proportional to 71,044.70, 106,558.54 and 55,265.49

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Solution

The fourth proportional to 71,044.70, 106,558.54 and 55,265.49 is: 82,891.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,044.70 : 106,558.54 = 55,265.49 : x
  2. Step 2: Convert to fraction form
    71,044.70/106,558.54 = 55,265.49/x
  3. Step 3: Cross multiply
    71,044.70x = 106,558.54 × 55,265.49
  4. Step 4: Simplify right side
    71,044.70x = 5,889,009,788.62
  5. Step 5: Solve for x
    x = 5,889,009,788.62/71,044.70
  6. Step 6: Final answer
    x = 82,891.62

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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.