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Finding the Fourth Proportional to 323,729.91, 446,779.94 and 187,805.43

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Solution

The fourth proportional to 323,729.91, 446,779.94 and 187,805.43 is: 259,190.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,729.91 : 446,779.94 = 187,805.43 : x
  2. Step 2: Convert to fraction form
    323,729.91/446,779.94 = 187,805.43/x
  3. Step 3: Cross multiply
    323,729.91x = 446,779.94 × 187,805.43
  4. Step 4: Simplify right side
    323,729.91x = 83,907,698,747.07
  5. Step 5: Solve for x
    x = 83,907,698,747.07/323,729.91
  6. Step 6: Final answer
    x = 259,190.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.