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Finding the Fourth Proportional to 263,620.82, 363,794.90 and 142,759.34

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Solution

The fourth proportional to 263,620.82, 363,794.90 and 142,759.34 is: 197,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,620.82 : 363,794.90 = 142,759.34 : x
  2. Step 2: Convert to fraction form
    263,620.82/363,794.90 = 142,759.34/x
  3. Step 3: Cross multiply
    263,620.82x = 363,794.90 × 142,759.34
  4. Step 4: Simplify right side
    263,620.82x = 51,935,119,819.37
  5. Step 5: Solve for x
    x = 51,935,119,819.37/263,620.82
  6. Step 6: Final answer
    x = 197,006.90

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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.