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Finding the Fourth Proportional to 133,593.80, 200,390.70 and 131,520.20

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Solution

The fourth proportional to 133,593.80, 200,390.70 and 131,520.20 is: 197,280.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,593.80 : 200,390.70 = 131,520.20 : x
  2. Step 2: Convert to fraction form
    133,593.80/200,390.70 = 131,520.20/x
  3. Step 3: Cross multiply
    133,593.80x = 200,390.70 × 131,520.20
  4. Step 4: Simplify right side
    133,593.80x = 26,355,424,942.14
  5. Step 5: Solve for x
    x = 26,355,424,942.14/133,593.80
  6. Step 6: Final answer
    x = 197,280.30

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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.