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Finding the Fourth Proportional to 226,592.80, 339,986.40 and 115,784.80

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Solution

The fourth proportional to 226,592.80, 339,986.40 and 115,784.80 is: 173,726.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,592.80 : 339,986.40 = 115,784.80 : x
  2. Step 2: Convert to fraction form
    226,592.80/339,986.40 = 115,784.80/x
  3. Step 3: Cross multiply
    226,592.80x = 339,986.40 × 115,784.80
  4. Step 4: Simplify right side
    226,592.80x = 39,365,257,326.72
  5. Step 5: Solve for x
    x = 39,365,257,326.72/226,592.80
  6. Step 6: Final answer
    x = 173,726.87

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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.