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Finding the Fourth Proportional to 70,819.69, 106,229.80 and 26,445.97

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Solution

The fourth proportional to 70,819.69, 106,229.80 and 26,445.97 is: 39,669.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,819.69 : 106,229.80 = 26,445.97 : x
  2. Step 2: Convert to fraction form
    70,819.69/106,229.80 = 26,445.97/x
  3. Step 3: Cross multiply
    70,819.69x = 106,229.80 × 26,445.97
  4. Step 4: Simplify right side
    70,819.69x = 2,809,349,971.68
  5. Step 5: Solve for x
    x = 2,809,349,971.68/70,819.69
  6. Step 6: Final answer
    x = 39,669.05

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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.