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Finding the Fourth Proportional to 226,718.61, 340,121.66 and 126,991.41

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Solution

The fourth proportional to 226,718.61, 340,121.66 and 126,991.41 is: 190,511.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,718.61 : 340,121.66 = 126,991.41 : x
  2. Step 2: Convert to fraction form
    226,718.61/340,121.66 = 126,991.41/x
  3. Step 3: Cross multiply
    226,718.61x = 340,121.66 × 126,991.41
  4. Step 4: Simplify right side
    226,718.61x = 43,192,528,539.98
  5. Step 5: Solve for x
    x = 43,192,528,539.98/226,718.61
  6. Step 6: Final answer
    x = 190,511.61

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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.