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Finding the Fourth Proportional to 263,523.70, 363,662.76 and 142,665.98

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Solution

The fourth proportional to 263,523.70, 363,662.76 and 142,665.98 is: 196,879.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,523.70 : 363,662.76 = 142,665.98 : x
  2. Step 2: Convert to fraction form
    263,523.70/363,662.76 = 142,665.98/x
  3. Step 3: Cross multiply
    263,523.70x = 363,662.76 × 142,665.98
  4. Step 4: Simplify right side
    263,523.70x = 51,882,305,829.99
  5. Step 5: Solve for x
    x = 51,882,305,829.99/263,523.70
  6. Step 6: Final answer
    x = 196,879.09

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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.