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Finding the Fourth Proportional to 366,137.31, 548,214.79 and 259,081.23

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Solution

The fourth proportional to 366,137.31, 548,214.79 and 259,081.23 is: 387,920.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,137.31 : 548,214.79 = 259,081.23 : x
  2. Step 2: Convert to fraction form
    366,137.31/548,214.79 = 259,081.23/x
  3. Step 3: Cross multiply
    366,137.31x = 548,214.79 × 259,081.23
  4. Step 4: Simplify right side
    366,137.31x = 142,032,162,097.39
  5. Step 5: Solve for x
    x = 142,032,162,097.39/366,137.31
  6. Step 6: Final answer
    x = 387,920.48

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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.