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Finding the Fourth Proportional to 60,074.82, 90,102.74 and 20,093.49

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Solution

The fourth proportional to 60,074.82, 90,102.74 and 20,093.49 is: 30,137.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,074.82 : 90,102.74 = 20,093.49 : x
  2. Step 2: Convert to fraction form
    60,074.82/90,102.74 = 20,093.49/x
  3. Step 3: Cross multiply
    60,074.82x = 90,102.74 × 20,093.49
  4. Step 4: Simplify right side
    60,074.82x = 1,810,478,404.70
  5. Step 5: Solve for x
    x = 1,810,478,404.70/60,074.82
  6. Step 6: Final answer
    x = 30,137.06

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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.