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Finding the Fourth Proportional to 80,979.28, 111,751.50 and 46,994.44

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Solution

The fourth proportional to 80,979.28, 111,751.50 and 46,994.44 is: 64,852.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,979.28 : 111,751.50 = 46,994.44 : x
  2. Step 2: Convert to fraction form
    80,979.28/111,751.50 = 46,994.44/x
  3. Step 3: Cross multiply
    80,979.28x = 111,751.50 × 46,994.44
  4. Step 4: Simplify right side
    80,979.28x = 5,251,699,161.66
  5. Step 5: Solve for x
    x = 5,251,699,161.66/80,979.28
  6. Step 6: Final answer
    x = 64,852.38

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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.