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Finding the Fourth Proportional to 141,048.86, 194,647.43 and 80,620.80

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Solution

The fourth proportional to 141,048.86, 194,647.43 and 80,620.80 is: 111,256.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,048.86 : 194,647.43 = 80,620.80 : x
  2. Step 2: Convert to fraction form
    141,048.86/194,647.43 = 80,620.80/x
  3. Step 3: Cross multiply
    141,048.86x = 194,647.43 × 80,620.80
  4. Step 4: Simplify right side
    141,048.86x = 15,692,631,524.54
  5. Step 5: Solve for x
    x = 15,692,631,524.54/141,048.86
  6. Step 6: Final answer
    x = 111,256.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.