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Finding the Fourth Proportional to 80,488.86, 111,079.82 and 46,498.80

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Solution

The fourth proportional to 80,488.86, 111,079.82 and 46,498.80 is: 64,171.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,488.86 : 111,079.82 = 46,498.80 : x
  2. Step 2: Convert to fraction form
    80,488.86/111,079.82 = 46,498.80/x
  3. Step 3: Cross multiply
    80,488.86x = 111,079.82 × 46,498.80
  4. Step 4: Simplify right side
    80,488.86x = 5,165,078,334.22
  5. Step 5: Solve for x
    x = 5,165,078,334.22/80,488.86
  6. Step 6: Final answer
    x = 64,171.34

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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.