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Finding the Fourth Proportional to 79,193.70, 118,805.94 and 25,900.56

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Solution

The fourth proportional to 79,193.70, 118,805.94 and 25,900.56 is: 38,855.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,193.70 : 118,805.94 = 25,900.56 : x
  2. Step 2: Convert to fraction form
    79,193.70/118,805.94 = 25,900.56/x
  3. Step 3: Cross multiply
    79,193.70x = 118,805.94 × 25,900.56
  4. Step 4: Simplify right side
    79,193.70x = 3,077,140,377.33
  5. Step 5: Solve for x
    x = 3,077,140,377.33/79,193.70
  6. Step 6: Final answer
    x = 38,855.87

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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.