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Finding the Fourth Proportional to 339,143.76, 467,922.42 and 218,354.94

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Solution

The fourth proportional to 339,143.76, 467,922.42 and 218,354.94 is: 301,268.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,143.76 : 467,922.42 = 218,354.94 : x
  2. Step 2: Convert to fraction form
    339,143.76/467,922.42 = 218,354.94/x
  3. Step 3: Cross multiply
    339,143.76x = 467,922.42 × 218,354.94
  4. Step 4: Simplify right side
    339,143.76x = 102,173,171,943.76
  5. Step 5: Solve for x
    x = 102,173,171,943.76/339,143.76
  6. Step 6: Final answer
    x = 301,268.03

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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.