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Finding the Fourth Proportional to 323,818.08, 485,648.72 and 165,965.28

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Solution

The fourth proportional to 323,818.08, 485,648.72 and 165,965.28 is: 248,907.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,818.08 : 485,648.72 = 165,965.28 : x
  2. Step 2: Convert to fraction form
    323,818.08/485,648.72 = 165,965.28/x
  3. Step 3: Cross multiply
    323,818.08x = 485,648.72 × 165,965.28
  4. Step 4: Simplify right side
    323,818.08x = 80,600,825,796.44
  5. Step 5: Solve for x
    x = 80,600,825,796.44/323,818.08
  6. Step 6: Final answer
    x = 248,907.74

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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.