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Finding the Fourth Proportional to 338,676.89, 508,319.89 and 181,040.09

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Solution

The fourth proportional to 338,676.89, 508,319.89 and 181,040.09 is: 271,722.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,676.89 : 508,319.89 = 181,040.09 : x
  2. Step 2: Convert to fraction form
    338,676.89/508,319.89 = 181,040.09/x
  3. Step 3: Cross multiply
    338,676.89x = 508,319.89 × 181,040.09
  4. Step 4: Simplify right side
    338,676.89x = 92,026,275,640.19
  5. Step 5: Solve for x
    x = 92,026,275,640.19/338,676.89
  6. Step 6: Final answer
    x = 271,722.93

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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.