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Finding the Fourth Proportional to 339,651.78, 468,720.48 and 186,705.66

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Solution

The fourth proportional to 339,651.78, 468,720.48 and 186,705.66 is: 257,654.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,651.78 : 468,720.48 = 186,705.66 : x
  2. Step 2: Convert to fraction form
    339,651.78/468,720.48 = 186,705.66/x
  3. Step 3: Cross multiply
    339,651.78x = 468,720.48 × 186,705.66
  4. Step 4: Simplify right side
    339,651.78x = 87,512,766,573.92
  5. Step 5: Solve for x
    x = 87,512,766,573.92/339,651.78
  6. Step 6: Final answer
    x = 257,654.37

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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.