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Finding the Fourth Proportional to 118,367.78, 177,552.34 and 39,481.79

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Solution

The fourth proportional to 118,367.78, 177,552.34 and 39,481.79 is: 59,222.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,367.78 : 177,552.34 = 39,481.79 : x
  2. Step 2: Convert to fraction form
    118,367.78/177,552.34 = 39,481.79/x
  3. Step 3: Cross multiply
    118,367.78x = 177,552.34 × 39,481.79
  4. Step 4: Simplify right side
    118,367.78x = 7,010,084,201.89
  5. Step 5: Solve for x
    x = 7,010,084,201.89/118,367.78
  6. Step 6: Final answer
    x = 59,222.91

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1.5x scale

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.