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Finding the Fourth Proportional to 103,408.70, 155,113.05 and 44,250.35

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Solution

The fourth proportional to 103,408.70, 155,113.05 and 44,250.35 is: 66,375.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,408.70 : 155,113.05 = 44,250.35 : x
  2. Step 2: Convert to fraction form
    103,408.70/155,113.05 = 44,250.35/x
  3. Step 3: Cross multiply
    103,408.70x = 155,113.05 × 44,250.35
  4. Step 4: Simplify right side
    103,408.70x = 6,863,806,752.07
  5. Step 5: Solve for x
    x = 6,863,806,752.07/103,408.70
  6. Step 6: Final answer
    x = 66,375.53

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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.