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Finding the Fourth Proportional to 339,009.50, 467,833.11 and 188,130.78

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Solution

The fourth proportional to 339,009.50, 467,833.11 and 188,130.78 is: 259,620.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,009.50 : 467,833.11 = 188,130.78 : x
  2. Step 2: Convert to fraction form
    339,009.50/467,833.11 = 188,130.78/x
  3. Step 3: Cross multiply
    339,009.50x = 467,833.11 × 188,130.78
  4. Step 4: Simplify right side
    339,009.50x = 88,013,807,894.13
  5. Step 5: Solve for x
    x = 88,013,807,894.13/339,009.50
  6. Step 6: Final answer
    x = 259,620.48

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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.