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Finding the Fourth Proportional to 74,926.60, 103,391.22 and 41,390.44

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Solution

The fourth proportional to 74,926.60, 103,391.22 and 41,390.44 is: 57,114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,926.60 : 103,391.22 = 41,390.44 : x
  2. Step 2: Convert to fraction form
    74,926.60/103,391.22 = 41,390.44/x
  3. Step 3: Cross multiply
    74,926.60x = 103,391.22 × 41,390.44
  4. Step 4: Simplify right side
    74,926.60x = 4,279,408,087.94
  5. Step 5: Solve for x
    x = 4,279,408,087.94/74,926.60
  6. Step 6: Final answer
    x = 57,114.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.