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Finding the Fourth Proportional to 79,638.59, 119,540.81 and 35,296.46

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Solution

The fourth proportional to 79,638.59, 119,540.81 and 35,296.46 is: 52,981.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,638.59 : 119,540.81 = 35,296.46 : x
  2. Step 2: Convert to fraction form
    79,638.59/119,540.81 = 35,296.46/x
  3. Step 3: Cross multiply
    79,638.59x = 119,540.81 × 35,296.46
  4. Step 4: Simplify right side
    79,638.59x = 4,219,367,357.35
  5. Step 5: Solve for x
    x = 4,219,367,357.35/79,638.59
  6. Step 6: Final answer
    x = 52,981.44

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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.