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Finding the Fourth Proportional to 118,481.29, 177,721.89 and 47,435.89

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Solution

The fourth proportional to 118,481.29, 177,721.89 and 47,435.89 is: 71,153.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,481.29 : 177,721.89 = 47,435.89 : x
  2. Step 2: Convert to fraction form
    118,481.29/177,721.89 = 47,435.89/x
  3. Step 3: Cross multiply
    118,481.29x = 177,721.89 × 47,435.89
  4. Step 4: Simplify right side
    118,481.29x = 8,430,396,024.63
  5. Step 5: Solve for x
    x = 8,430,396,024.63/118,481.29
  6. Step 6: Final answer
    x = 71,153.82

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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.