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Finding the Fourth Proportional to 80,879.76, 111,614.50 and 46,908.38

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Solution

The fourth proportional to 80,879.76, 111,614.50 and 46,908.38 is: 64,733.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,879.76 : 111,614.50 = 46,908.38 : x
  2. Step 2: Convert to fraction form
    80,879.76/111,614.50 = 46,908.38/x
  3. Step 3: Cross multiply
    80,879.76x = 111,614.50 × 46,908.38
  4. Step 4: Simplify right side
    80,879.76x = 5,235,654,821.44
  5. Step 5: Solve for x
    x = 5,235,654,821.44/80,879.76
  6. Step 6: Final answer
    x = 64,733.81

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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.