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Finding the Fourth Proportional to 67,734.73, 101,616.22 and 20,347.91

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Solution

The fourth proportional to 67,734.73, 101,616.22 and 20,347.91 is: 30,526.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,734.73 : 101,616.22 = 20,347.91 : x
  2. Step 2: Convert to fraction form
    67,734.73/101,616.22 = 20,347.91/x
  3. Step 3: Cross multiply
    67,734.73x = 101,616.22 × 20,347.91
  4. Step 4: Simplify right side
    67,734.73x = 2,067,677,597.51
  5. Step 5: Solve for x
    x = 2,067,677,597.51/67,734.73
  6. Step 6: Final answer
    x = 30,526.11

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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.