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Finding the Fourth Proportional to 68,222.92, 102,145.44 and 34,871.20

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Solution

The fourth proportional to 68,222.92, 102,145.44 and 34,871.20 is: 52,210.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,222.92 : 102,145.44 = 34,871.20 : x
  2. Step 2: Convert to fraction form
    68,222.92/102,145.44 = 34,871.20/x
  3. Step 3: Cross multiply
    68,222.92x = 102,145.44 × 34,871.20
  4. Step 4: Simplify right side
    68,222.92x = 3,561,934,067.33
  5. Step 5: Solve for x
    x = 3,561,934,067.33/68,222.92
  6. Step 6: Final answer
    x = 52,210.23

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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.