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Finding the Fourth Proportional to 79,231.70, 118,847.55 and 63,679.70

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Solution

The fourth proportional to 79,231.70, 118,847.55 and 63,679.70 is: 95,519.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,231.70 : 118,847.55 = 63,679.70 : x
  2. Step 2: Convert to fraction form
    79,231.70/118,847.55 = 63,679.70/x
  3. Step 3: Cross multiply
    79,231.70x = 118,847.55 × 63,679.70
  4. Step 4: Simplify right side
    79,231.70x = 7,568,176,329.74
  5. Step 5: Solve for x
    x = 7,568,176,329.74/79,231.70
  6. Step 6: Final answer
    x = 95,519.55

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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.