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Finding the Fourth Proportional to 120,846.27, 181,269.47 and 45,949.12

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Solution

The fourth proportional to 120,846.27, 181,269.47 and 45,949.12 is: 68,923.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,846.27 : 181,269.47 = 45,949.12 : x
  2. Step 2: Convert to fraction form
    120,846.27/181,269.47 = 45,949.12/x
  3. Step 3: Cross multiply
    120,846.27x = 181,269.47 × 45,949.12
  4. Step 4: Simplify right side
    120,846.27x = 8,329,172,399.62
  5. Step 5: Solve for x
    x = 8,329,172,399.62/120,846.27
  6. Step 6: Final answer
    x = 68,923.71

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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.