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Finding the Fourth Proportional to 67,449.74, 101,174.55 and 20,064.64

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Solution

The fourth proportional to 67,449.74, 101,174.55 and 20,064.64 is: 30,096.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,449.74 : 101,174.55 = 20,064.64 : x
  2. Step 2: Convert to fraction form
    67,449.74/101,174.55 = 20,064.64/x
  3. Step 3: Cross multiply
    67,449.74x = 101,174.55 × 20,064.64
  4. Step 4: Simplify right side
    67,449.74x = 2,030,030,922.91
  5. Step 5: Solve for x
    x = 2,030,030,922.91/67,449.74
  6. Step 6: Final answer
    x = 30,096.94

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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.