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Finding the Fourth Proportional to 228,650.08, 342,961.84 and 68,722.56

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Solution

The fourth proportional to 228,650.08, 342,961.84 and 68,722.56 is: 103,079.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,650.08 : 342,961.84 = 68,722.56 : x
  2. Step 2: Convert to fraction form
    228,650.08/342,961.84 = 68,722.56/x
  3. Step 3: Cross multiply
    228,650.08x = 342,961.84 × 68,722.56
  4. Step 4: Simplify right side
    228,650.08x = 23,569,215,627.11
  5. Step 5: Solve for x
    x = 23,569,215,627.11/228,650.08
  6. Step 6: Final answer
    x = 103,079.85

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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.