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Finding the Fourth Proportional to 150,074.40, 207,093.96 and 82,078.68

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Solution

The fourth proportional to 150,074.40, 207,093.96 and 82,078.68 is: 113,263.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,074.40 : 207,093.96 = 82,078.68 : x
  2. Step 2: Convert to fraction form
    150,074.40/207,093.96 = 82,078.68/x
  3. Step 3: Cross multiply
    150,074.40x = 207,093.96 × 82,078.68
  4. Step 4: Simplify right side
    150,074.40x = 16,997,998,872.77
  5. Step 5: Solve for x
    x = 16,997,998,872.77/150,074.40
  6. Step 6: Final answer
    x = 113,263.81

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1.5x scale

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.