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Finding the Fourth Proportional to 355,589.10, 532,638.45 and 166,211.10

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Solution

The fourth proportional to 355,589.10, 532,638.45 and 166,211.10 is: 248,968.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,589.10 : 532,638.45 = 166,211.10 : x
  2. Step 2: Convert to fraction form
    355,589.10/532,638.45 = 166,211.10/x
  3. Step 3: Cross multiply
    355,589.10x = 532,638.45 × 166,211.10
  4. Step 4: Simplify right side
    355,589.10x = 88,530,422,676.80
  5. Step 5: Solve for x
    x = 88,530,422,676.80/355,589.10
  6. Step 6: Final answer
    x = 248,968.33

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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.