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Finding the Fourth Proportional to 99,749.44, 149,499.24 and 49,843.54

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Solution

The fourth proportional to 99,749.44, 149,499.24 and 49,843.54 is: 74,702.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,749.44 : 149,499.24 = 49,843.54 : x
  2. Step 2: Convert to fraction form
    99,749.44/149,499.24 = 49,843.54/x
  3. Step 3: Cross multiply
    99,749.44x = 149,499.24 × 49,843.54
  4. Step 4: Simplify right side
    99,749.44x = 7,451,571,348.91
  5. Step 5: Solve for x
    x = 7,451,571,348.91/99,749.44
  6. Step 6: Final answer
    x = 74,702.89

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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.