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Finding the Fourth Proportional to 198,737.86, 297,608.26 and 118,726.48

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Solution

The fourth proportional to 198,737.86, 297,608.26 and 118,726.48 is: 177,791.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,737.86 : 297,608.26 = 118,726.48 : x
  2. Step 2: Convert to fraction form
    198,737.86/297,608.26 = 118,726.48/x
  3. Step 3: Cross multiply
    198,737.86x = 297,608.26 × 118,726.48
  4. Step 4: Simplify right side
    198,737.86x = 35,333,981,128.72
  5. Step 5: Solve for x
    x = 35,333,981,128.72/198,737.86
  6. Step 6: Final answer
    x = 177,791.90

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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.