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Finding the Fourth Proportional to 67,633.56, 101,449.02 and 20,248.68

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Solution

The fourth proportional to 67,633.56, 101,449.02 and 20,248.68 is: 30,372.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,633.56 : 101,449.02 = 20,248.68 : x
  2. Step 2: Convert to fraction form
    67,633.56/101,449.02 = 20,248.68/x
  3. Step 3: Cross multiply
    67,633.56x = 101,449.02 × 20,248.68
  4. Step 4: Simplify right side
    67,633.56x = 2,054,208,742.29
  5. Step 5: Solve for x
    x = 2,054,208,742.29/67,633.56
  6. Step 6: Final answer
    x = 30,372.62

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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.