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Finding the Fourth Proportional to 228,108.56, 342,211.73 and 68,197.01

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Solution

The fourth proportional to 228,108.56, 342,211.73 and 68,197.01 is: 102,310.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,108.56 : 342,211.73 = 68,197.01 : x
  2. Step 2: Convert to fraction form
    228,108.56/342,211.73 = 68,197.01/x
  3. Step 3: Cross multiply
    228,108.56x = 342,211.73 × 68,197.01
  4. Step 4: Simplify right side
    228,108.56x = 23,337,814,720.88
  5. Step 5: Solve for x
    x = 23,337,814,720.88/228,108.56
  6. Step 6: Final answer
    x = 102,310.12

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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.