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Finding the Fourth Proportional to 196,331.70, 270,949.12 and 147,846.80

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Solution

The fourth proportional to 196,331.70, 270,949.12 and 147,846.80 is: 204,037.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,331.70 : 270,949.12 = 147,846.80 : x
  2. Step 2: Convert to fraction form
    196,331.70/270,949.12 = 147,846.80/x
  3. Step 3: Cross multiply
    196,331.70x = 270,949.12 × 147,846.80
  4. Step 4: Simplify right side
    196,331.70x = 40,058,960,354.82
  5. Step 5: Solve for x
    x = 40,058,960,354.82/196,331.70
  6. Step 6: Final answer
    x = 204,037.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.