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Finding the Fourth Proportional to 111,613.46, 154,067.01 and 73,899.86

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Solution

The fourth proportional to 111,613.46, 154,067.01 and 73,899.86 is: 102,008.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,613.46 : 154,067.01 = 73,899.86 : x
  2. Step 2: Convert to fraction form
    111,613.46/154,067.01 = 73,899.86/x
  3. Step 3: Cross multiply
    111,613.46x = 154,067.01 × 73,899.86
  4. Step 4: Simplify right side
    111,613.46x = 11,385,530,469.62
  5. Step 5: Solve for x
    x = 11,385,530,469.62/111,613.46
  6. Step 6: Final answer
    x = 102,008.58

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1.5x scale

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.