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Finding the Fourth Proportional to 196,161.64, 270,709.22 and 120,753.64

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Solution

The fourth proportional to 196,161.64, 270,709.22 and 120,753.64 is: 166,643.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,161.64 : 270,709.22 = 120,753.64 : x
  2. Step 2: Convert to fraction form
    196,161.64/270,709.22 = 120,753.64/x
  3. Step 3: Cross multiply
    196,161.64x = 270,709.22 × 120,753.64
  4. Step 4: Simplify right side
    196,161.64x = 32,689,123,696.56
  5. Step 5: Solve for x
    x = 32,689,123,696.56/196,161.64
  6. Step 6: Final answer
    x = 166,643.81

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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.