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Finding the Fourth Proportional to 226,040.40, 338,623.20 and 132,436.80

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Solution

The fourth proportional to 226,040.40, 338,623.20 and 132,436.80 is: 198,398.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,040.40 : 338,623.20 = 132,436.80 : x
  2. Step 2: Convert to fraction form
    226,040.40/338,623.20 = 132,436.80/x
  3. Step 3: Cross multiply
    226,040.40x = 338,623.20 × 132,436.80
  4. Step 4: Simplify right side
    226,040.40x = 44,846,173,013.76
  5. Step 5: Solve for x
    x = 44,846,173,013.76/226,040.40
  6. Step 6: Final answer
    x = 198,398.93

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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.