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Finding the Fourth Proportional to 259,912.77, 389,554.99 and 126,593.25

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Solution

The fourth proportional to 259,912.77, 389,554.99 and 126,593.25 is: 189,736.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,912.77 : 389,554.99 = 126,593.25 : x
  2. Step 2: Convert to fraction form
    259,912.77/389,554.99 = 126,593.25/x
  3. Step 3: Cross multiply
    259,912.77x = 389,554.99 × 126,593.25
  4. Step 4: Simplify right side
    259,912.77x = 49,315,032,237.82
  5. Step 5: Solve for x
    x = 49,315,032,237.82/259,912.77
  6. Step 6: Final answer
    x = 189,736.86

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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.