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Finding the Fourth Proportional to 80,201.91, 110,668.92 and 46,221.54

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Solution

The fourth proportional to 80,201.91, 110,668.92 and 46,221.54 is: 63,780.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,201.91 : 110,668.92 = 46,221.54 : x
  2. Step 2: Convert to fraction form
    80,201.91/110,668.92 = 46,221.54/x
  3. Step 3: Cross multiply
    80,201.91x = 110,668.92 × 46,221.54
  4. Step 4: Simplify right side
    80,201.91x = 5,115,287,912.54
  5. Step 5: Solve for x
    x = 5,115,287,912.54/80,201.91
  6. Step 6: Final answer
    x = 63,780.13

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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.