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Finding the Fourth Proportional to 118,604.50, 177,792.56 and 43,683.78

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Solution

The fourth proportional to 118,604.50, 177,792.56 and 43,683.78 is: 65,483.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,604.50 : 177,792.56 = 43,683.78 : x
  2. Step 2: Convert to fraction form
    118,604.50/177,792.56 = 43,683.78/x
  3. Step 3: Cross multiply
    118,604.50x = 177,792.56 × 43,683.78
  4. Step 4: Simplify right side
    118,604.50x = 7,766,651,076.68
  5. Step 5: Solve for x
    x = 7,766,651,076.68/118,604.50
  6. Step 6: Final answer
    x = 65,483.61

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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.