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Finding the Fourth Proportional to 79,282.44, 118,908.52 and 39,828.60

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Solution

The fourth proportional to 79,282.44, 118,908.52 and 39,828.60 is: 59,735.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,282.44 : 118,908.52 = 39,828.60 : x
  2. Step 2: Convert to fraction form
    79,282.44/118,908.52 = 39,828.60/x
  3. Step 3: Cross multiply
    79,282.44x = 118,908.52 × 39,828.60
  4. Step 4: Simplify right side
    79,282.44x = 4,735,959,879.67
  5. Step 5: Solve for x
    x = 4,735,959,879.67/79,282.44
  6. Step 6: Final answer
    x = 59,735.29

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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.