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Finding the Fourth Proportional to 150,561.26, 207,759.56 and 86,919.56

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Solution

The fourth proportional to 150,561.26, 207,759.56 and 86,919.56 is: 119,940.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,561.26 : 207,759.56 = 86,919.56 : x
  2. Step 2: Convert to fraction form
    150,561.26/207,759.56 = 86,919.56/x
  3. Step 3: Cross multiply
    150,561.26x = 207,759.56 × 86,919.56
  4. Step 4: Simplify right side
    150,561.26x = 18,058,369,540.99
  5. Step 5: Solve for x
    x = 18,058,369,540.99/150,561.26
  6. Step 6: Final answer
    x = 119,940.35

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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.