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Finding the Fourth Proportional to 226,482.40, 339,982.80 and 133,040.80

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Solution

The fourth proportional to 226,482.40, 339,982.80 and 133,040.80 is: 199,713.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,482.40 : 339,982.80 = 133,040.80 : x
  2. Step 2: Convert to fraction form
    226,482.40/339,982.80 = 133,040.80/x
  3. Step 3: Cross multiply
    226,482.40x = 339,982.80 × 133,040.80
  4. Step 4: Simplify right side
    226,482.40x = 45,231,583,698.24
  5. Step 5: Solve for x
    x = 45,231,583,698.24/226,482.40
  6. Step 6: Final answer
    x = 199,713.46

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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.