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Finding the Fourth Proportional to 272,877.72, 376,467.74 and 165,408.54

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Solution

The fourth proportional to 272,877.72, 376,467.74 and 165,408.54 is: 228,201.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,877.72 : 376,467.74 = 165,408.54 : x
  2. Step 2: Convert to fraction form
    272,877.72/376,467.74 = 165,408.54/x
  3. Step 3: Cross multiply
    272,877.72x = 376,467.74 × 165,408.54
  4. Step 4: Simplify right side
    272,877.72x = 62,270,979,230.50
  5. Step 5: Solve for x
    x = 62,270,979,230.50/272,877.72
  6. Step 6: Final answer
    x = 228,201.04

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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.