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Finding the Fourth Proportional to 77,249.99, 115,781.42 and 32,783.33

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Solution

The fourth proportional to 77,249.99, 115,781.42 and 32,783.33 is: 49,135.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,249.99 : 115,781.42 = 32,783.33 : x
  2. Step 2: Convert to fraction form
    77,249.99/115,781.42 = 32,783.33/x
  3. Step 3: Cross multiply
    77,249.99x = 115,781.42 × 32,783.33
  4. Step 4: Simplify right side
    77,249.99x = 3,795,700,499.73
  5. Step 5: Solve for x
    x = 3,795,700,499.73/77,249.99
  6. Step 6: Final answer
    x = 49,135.29

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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.