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Finding the Fourth Proportional to 86,651.78, 119,575.17 and 48,403.73

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Solution

The fourth proportional to 86,651.78, 119,575.17 and 48,403.73 is: 66,794.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,651.78 : 119,575.17 = 48,403.73 : x
  2. Step 2: Convert to fraction form
    86,651.78/119,575.17 = 48,403.73/x
  3. Step 3: Cross multiply
    86,651.78x = 119,575.17 × 48,403.73
  4. Step 4: Simplify right side
    86,651.78x = 5,787,884,542.32
  5. Step 5: Solve for x
    x = 5,787,884,542.32/86,651.78
  6. Step 6: Final answer
    x = 66,794.76

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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.