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Finding the Fourth Proportional to 228,734.40, 343,115.04 and 88,493.76

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Solution

The fourth proportional to 228,734.40, 343,115.04 and 88,493.76 is: 132,745.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,734.40 : 343,115.04 = 88,493.76 : x
  2. Step 2: Convert to fraction form
    228,734.40/343,115.04 = 88,493.76/x
  3. Step 3: Cross multiply
    228,734.40x = 343,115.04 × 88,493.76
  4. Step 4: Simplify right side
    228,734.40x = 30,363,540,002.15
  5. Step 5: Solve for x
    x = 30,363,540,002.15/228,734.40
  6. Step 6: Final answer
    x = 132,745.84

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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.