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Finding the Fourth Proportional to 184,245.90, 276,514.65 and 71,979.90

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Solution

The fourth proportional to 184,245.90, 276,514.65 and 71,979.90 is: 108,026.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,245.90 : 276,514.65 = 71,979.90 : x
  2. Step 2: Convert to fraction form
    184,245.90/276,514.65 = 71,979.90/x
  3. Step 3: Cross multiply
    184,245.90x = 276,514.65 × 71,979.90
  4. Step 4: Simplify right side
    184,245.90x = 19,903,496,855.54
  5. Step 5: Solve for x
    x = 19,903,496,855.54/184,245.90
  6. Step 6: Final answer
    x = 108,026.81

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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.