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Finding the Fourth Proportional to 123,219.36, 184,900.32 and 48,390.48

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Solution

The fourth proportional to 123,219.36, 184,900.32 and 48,390.48 is: 72,613.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,219.36 : 184,900.32 = 48,390.48 : x
  2. Step 2: Convert to fraction form
    123,219.36/184,900.32 = 48,390.48/x
  3. Step 3: Cross multiply
    123,219.36x = 184,900.32 × 48,390.48
  4. Step 4: Simplify right side
    123,219.36x = 8,947,415,236.95
  5. Step 5: Solve for x
    x = 8,947,415,236.95/123,219.36
  6. Step 6: Final answer
    x = 72,613.71

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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.