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Finding the Fourth Proportional to 123,249.15, 184,879.80 and 64,200.15

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Solution

The fourth proportional to 123,249.15, 184,879.80 and 64,200.15 is: 96,303.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,249.15 : 184,879.80 = 64,200.15 : x
  2. Step 2: Convert to fraction form
    123,249.15/184,879.80 = 64,200.15/x
  3. Step 3: Cross multiply
    123,249.15x = 184,879.80 × 64,200.15
  4. Step 4: Simplify right side
    123,249.15x = 11,869,310,891.97
  5. Step 5: Solve for x
    x = 11,869,310,891.97/123,249.15
  6. Step 6: Final answer
    x = 96,303.39

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1.5x scale

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.