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Finding the Fourth Proportional to 103,414.70, 155,135.28 and 36,861.55

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Solution

The fourth proportional to 103,414.70, 155,135.28 and 36,861.55 is: 55,297.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,414.70 : 155,135.28 = 36,861.55 : x
  2. Step 2: Convert to fraction form
    103,414.70/155,135.28 = 36,861.55/x
  3. Step 3: Cross multiply
    103,414.70x = 155,135.28 × 36,861.55
  4. Step 4: Simplify right side
    103,414.70x = 5,718,526,880.48
  5. Step 5: Solve for x
    x = 5,718,526,880.48/103,414.70
  6. Step 6: Final answer
    x = 55,297.04

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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.