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Finding the Fourth Proportional to 110,426.80, 165,640.20 and 97,742.20

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Solution

The fourth proportional to 110,426.80, 165,640.20 and 97,742.20 is: 146,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,426.80 : 165,640.20 = 97,742.20 : x
  2. Step 2: Convert to fraction form
    110,426.80/165,640.20 = 97,742.20/x
  3. Step 3: Cross multiply
    110,426.80x = 165,640.20 × 97,742.20
  4. Step 4: Simplify right side
    110,426.80x = 16,190,037,556.44
  5. Step 5: Solve for x
    x = 16,190,037,556.44/110,426.80
  6. Step 6: Final answer
    x = 146,613.30

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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.