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Finding the Fourth Proportional to 70,618.20, 105,893.10 and 41,044.56

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Solution

The fourth proportional to 70,618.20, 105,893.10 and 41,044.56 is: 61,546.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,618.20 : 105,893.10 = 41,044.56 : x
  2. Step 2: Convert to fraction form
    70,618.20/105,893.10 = 41,044.56/x
  3. Step 3: Cross multiply
    70,618.20x = 105,893.10 × 41,044.56
  4. Step 4: Simplify right side
    70,618.20x = 4,346,335,696.54
  5. Step 5: Solve for x
    x = 4,346,335,696.54/70,618.20
  6. Step 6: Final answer
    x = 61,546.96

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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.