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Finding the Fourth Proportional to 53,263.44, 79,819.06 and 39,112.44

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Solution

The fourth proportional to 53,263.44, 79,819.06 and 39,112.44 is: 58,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,263.44 : 79,819.06 = 39,112.44 : x
  2. Step 2: Convert to fraction form
    53,263.44/79,819.06 = 39,112.44/x
  3. Step 3: Cross multiply
    53,263.44x = 79,819.06 × 39,112.44
  4. Step 4: Simplify right side
    53,263.44x = 3,121,918,195.11
  5. Step 5: Solve for x
    x = 3,121,918,195.11/53,263.44
  6. Step 6: Final answer
    x = 58,612.78

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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.