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Finding the Fourth Proportional to 228,627.84, 342,847.89 and 68,647.87

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Solution

The fourth proportional to 228,627.84, 342,847.89 and 68,647.87 is: 102,943.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,627.84 : 342,847.89 = 68,647.87 : x
  2. Step 2: Convert to fraction form
    228,627.84/342,847.89 = 68,647.87/x
  3. Step 3: Cross multiply
    228,627.84x = 342,847.89 × 68,647.87
  4. Step 4: Simplify right side
    228,627.84x = 23,535,777,382.49
  5. Step 5: Solve for x
    x = 23,535,777,382.49/228,627.84
  6. Step 6: Final answer
    x = 102,943.62

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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.