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Finding the Fourth Proportional to 263,099.08, 394,614.42 and 105,329.08

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Solution

The fourth proportional to 263,099.08, 394,614.42 and 105,329.08 is: 157,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,099.08 : 394,614.42 = 105,329.08 : x
  2. Step 2: Convert to fraction form
    263,099.08/394,614.42 = 105,329.08/x
  3. Step 3: Cross multiply
    263,099.08x = 394,614.42 × 105,329.08
  4. Step 4: Simplify right side
    263,099.08x = 41,564,373,813.33
  5. Step 5: Solve for x
    x = 41,564,373,813.33/263,099.08
  6. Step 6: Final answer
    x = 157,979.93

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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.