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Finding the Fourth Proportional to 73,651.92, 101,621.96 and 43,434.80

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Solution

The fourth proportional to 73,651.92, 101,621.96 and 43,434.80 is: 59,929.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,651.92 : 101,621.96 = 43,434.80 : x
  2. Step 2: Convert to fraction form
    73,651.92/101,621.96 = 43,434.80/x
  3. Step 3: Cross multiply
    73,651.92x = 101,621.96 × 43,434.80
  4. Step 4: Simplify right side
    73,651.92x = 4,413,929,508.21
  5. Step 5: Solve for x
    x = 4,413,929,508.21/73,651.92
  6. Step 6: Final answer
    x = 59,929.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.