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Finding the Fourth Proportional to 118,520.91, 177,851.34 and 43,693.29

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Solution

The fourth proportional to 118,520.91, 177,851.34 and 43,693.29 is: 65,565.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,520.91 : 177,851.34 = 43,693.29 : x
  2. Step 2: Convert to fraction form
    118,520.91/177,851.34 = 43,693.29/x
  3. Step 3: Cross multiply
    118,520.91x = 177,851.34 × 43,693.29
  4. Step 4: Simplify right side
    118,520.91x = 7,770,910,175.51
  5. Step 5: Solve for x
    x = 7,770,910,175.51/118,520.91
  6. Step 6: Final answer
    x = 65,565.73

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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.