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Finding the Fourth Proportional to 339,876.75, 469,029.92 and 188,973.75

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Solution

The fourth proportional to 339,876.75, 469,029.92 and 188,973.75 is: 260,783.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,876.75 : 469,029.92 = 188,973.75 : x
  2. Step 2: Convert to fraction form
    339,876.75/469,029.92 = 188,973.75/x
  3. Step 3: Cross multiply
    339,876.75x = 469,029.92 × 188,973.75
  4. Step 4: Simplify right side
    339,876.75x = 88,634,341,899.73
  5. Step 5: Solve for x
    x = 88,634,341,899.73/339,876.75
  6. Step 6: Final answer
    x = 260,783.78

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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.