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Finding the Fourth Proportional to 111,388.96, 166,976.88 and 41,249.44

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Solution

The fourth proportional to 111,388.96, 166,976.88 and 41,249.44 is: 61,834.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,388.96 : 166,976.88 = 41,249.44 : x
  2. Step 2: Convert to fraction form
    111,388.96/166,976.88 = 41,249.44/x
  3. Step 3: Cross multiply
    111,388.96x = 166,976.88 × 41,249.44
  4. Step 4: Simplify right side
    111,388.96x = 6,887,702,792.95
  5. Step 5: Solve for x
    x = 6,887,702,792.95/111,388.96
  6. Step 6: Final answer
    x = 61,834.70

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1.5x scale

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.