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Finding the Fourth Proportional to 254,618.39, 381,992.45 and 119,656.26

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Solution

The fourth proportional to 254,618.39, 381,992.45 and 119,656.26 is: 179,514.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,618.39 : 381,992.45 = 119,656.26 : x
  2. Step 2: Convert to fraction form
    254,618.39/381,992.45 = 119,656.26/x
  3. Step 3: Cross multiply
    254,618.39x = 381,992.45 × 119,656.26
  4. Step 4: Simplify right side
    254,618.39x = 45,707,787,316.96
  5. Step 5: Solve for x
    x = 45,707,787,316.96/254,618.39
  6. Step 6: Final answer
    x = 179,514.87

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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.