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Finding the Fourth Proportional to 149,033.87, 205,560.99 and 91,597.78

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Solution

The fourth proportional to 149,033.87, 205,560.99 and 91,597.78 is: 126,339.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,033.87 : 205,560.99 = 91,597.78 : x
  2. Step 2: Convert to fraction form
    149,033.87/205,560.99 = 91,597.78/x
  3. Step 3: Cross multiply
    149,033.87x = 205,560.99 × 91,597.78
  4. Step 4: Simplify right side
    149,033.87x = 18,828,929,824.70
  5. Step 5: Solve for x
    x = 18,828,929,824.70/149,033.87
  6. Step 6: Final answer
    x = 126,339.94

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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.