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Finding the Fourth Proportional to 131,469.40, 197,204.10 and 36,699.40

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Solution

The fourth proportional to 131,469.40, 197,204.10 and 36,699.40 is: 55,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,469.40 : 197,204.10 = 36,699.40 : x
  2. Step 2: Convert to fraction form
    131,469.40/197,204.10 = 36,699.40/x
  3. Step 3: Cross multiply
    131,469.40x = 197,204.10 × 36,699.40
  4. Step 4: Simplify right side
    131,469.40x = 7,237,272,147.54
  5. Step 5: Solve for x
    x = 7,237,272,147.54/131,469.40
  6. Step 6: Final answer
    x = 55,049.10

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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.