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Finding the Fourth Proportional to 339,826.62, 468,990.59 and 186,891.74

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Solution

The fourth proportional to 339,826.62, 468,990.59 and 186,891.74 is: 257,927.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,826.62 : 468,990.59 = 186,891.74 : x
  2. Step 2: Convert to fraction form
    339,826.62/468,990.59 = 186,891.74/x
  3. Step 3: Cross multiply
    339,826.62x = 468,990.59 × 186,891.74
  4. Step 4: Simplify right side
    339,826.62x = 87,650,467,408.73
  5. Step 5: Solve for x
    x = 87,650,467,408.73/339,826.62
  6. Step 6: Final answer
    x = 257,927.02

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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.