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Finding the Fourth Proportional to 79,283.61, 118,912.46 and 29,351.97

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Solution

The fourth proportional to 79,283.61, 118,912.46 and 29,351.97 is: 44,023.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,283.61 : 118,912.46 = 29,351.97 : x
  2. Step 2: Convert to fraction form
    79,283.61/118,912.46 = 29,351.97/x
  3. Step 3: Cross multiply
    79,283.61x = 118,912.46 × 29,351.97
  4. Step 4: Simplify right side
    79,283.61x = 3,490,314,811.79
  5. Step 5: Solve for x
    x = 3,490,314,811.79/79,283.61
  6. Step 6: Final answer
    x = 44,023.16

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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.