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Finding the Fourth Proportional to 196,698.78, 295,048.17 and 91,394.73

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Solution

The fourth proportional to 196,698.78, 295,048.17 and 91,394.73 is: 137,092.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,698.78 : 295,048.17 = 91,394.73 : x
  2. Step 2: Convert to fraction form
    196,698.78/295,048.17 = 91,394.73/x
  3. Step 3: Cross multiply
    196,698.78x = 295,048.17 × 91,394.73
  4. Step 4: Simplify right side
    196,698.78x = 26,965,847,834.14
  5. Step 5: Solve for x
    x = 26,965,847,834.14/196,698.78
  6. Step 6: Final answer
    x = 137,092.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.