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Finding the Fourth Proportional to 191,620.80, 267,919.20 and 191,620.80

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Solution

The fourth proportional to 191,620.80, 267,919.20 and 191,620.80 is: 267,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,620.80 : 267,919.20 = 191,620.80 : x
  2. Step 2: Convert to fraction form
    191,620.80/267,919.20 = 191,620.80/x
  3. Step 3: Cross multiply
    191,620.80x = 267,919.20 × 191,620.80
  4. Step 4: Simplify right side
    191,620.80x = 51,338,891,439.36
  5. Step 5: Solve for x
    x = 51,338,891,439.36/191,620.80
  6. Step 6: Final answer
    x = 267,919.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.