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Finding the Fourth Proportional to 112,614.80, 168,922.20 and 110,865.20

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Solution

The fourth proportional to 112,614.80, 168,922.20 and 110,865.20 is: 166,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,614.80 : 168,922.20 = 110,865.20 : x
  2. Step 2: Convert to fraction form
    112,614.80/168,922.20 = 110,865.20/x
  3. Step 3: Cross multiply
    112,614.80x = 168,922.20 × 110,865.20
  4. Step 4: Simplify right side
    112,614.80x = 18,727,593,487.44
  5. Step 5: Solve for x
    x = 18,727,593,487.44/112,614.80
  6. Step 6: Final answer
    x = 166,297.80

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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.