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Finding the Fourth Proportional to 231,060.80, 346,072.80 and 225,876.80

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Solution

The fourth proportional to 231,060.80, 346,072.80 and 225,876.80 is: 338,308.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,060.80 : 346,072.80 = 225,876.80 : x
  2. Step 2: Convert to fraction form
    231,060.80/346,072.80 = 225,876.80/x
  3. Step 3: Cross multiply
    231,060.80x = 346,072.80 × 225,876.80
  4. Step 4: Simplify right side
    231,060.80x = 78,169,816,631.04
  5. Step 5: Solve for x
    x = 78,169,816,631.04/231,060.80
  6. Step 6: Final answer
    x = 338,308.43

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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.