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Finding the Fourth Proportional to 203,626.08, 280,745.64 and 145,552.32

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Solution

The fourth proportional to 203,626.08, 280,745.64 and 145,552.32 is: 200,677.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,626.08 : 280,745.64 = 145,552.32 : x
  2. Step 2: Convert to fraction form
    203,626.08/280,745.64 = 145,552.32/x
  3. Step 3: Cross multiply
    203,626.08x = 280,745.64 × 145,552.32
  4. Step 4: Simplify right side
    203,626.08x = 40,863,179,231.88
  5. Step 5: Solve for x
    x = 40,863,179,231.88/203,626.08
  6. Step 6: Final answer
    x = 200,677.53

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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.