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Finding the Fourth Proportional to 196,396.70, 271,027.78 and 111,513.78

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Solution

The fourth proportional to 196,396.70, 271,027.78 and 111,513.78 is: 153,889.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,396.70 : 271,027.78 = 111,513.78 : x
  2. Step 2: Convert to fraction form
    196,396.70/271,027.78 = 111,513.78/x
  3. Step 3: Cross multiply
    196,396.70x = 271,027.78 × 111,513.78
  4. Step 4: Simplify right side
    196,396.70x = 30,223,332,232.81
  5. Step 5: Solve for x
    x = 30,223,332,232.81/196,396.70
  6. Step 6: Final answer
    x = 153,889.21

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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.