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Finding the Fourth Proportional to 118,161.96, 177,204.60 and 39,255

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Solution

The fourth proportional to 118,161.96, 177,204.60 and 39,255 is: 58,869.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,161.96 : 177,204.60 = 39,255 : x
  2. Step 2: Convert to fraction form
    118,161.96/177,204.60 = 39,255/x
  3. Step 3: Cross multiply
    118,161.96x = 177,204.60 × 39,255
  4. Step 4: Simplify right side
    118,161.96x = 6,956,166,573
  5. Step 5: Solve for x
    x = 6,956,166,573/118,161.96
  6. Step 6: Final answer
    x = 58,869.76

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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.