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Finding the Fourth Proportional to 127,843.92, 191,773.44 and 39,103.56

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Solution

The fourth proportional to 127,843.92, 191,773.44 and 39,103.56 is: 58,657.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,843.92 : 191,773.44 = 39,103.56 : x
  2. Step 2: Convert to fraction form
    127,843.92/191,773.44 = 39,103.56/x
  3. Step 3: Cross multiply
    127,843.92x = 191,773.44 × 39,103.56
  4. Step 4: Simplify right side
    127,843.92x = 7,499,024,217.45
  5. Step 5: Solve for x
    x = 7,499,024,217.45/127,843.92
  6. Step 6: Final answer
    x = 58,657.65

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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.