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Finding the Fourth Proportional to 79,244.44, 118,866.48 and 20,079.94

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Solution

The fourth proportional to 79,244.44, 118,866.48 and 20,079.94 is: 30,119.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,244.44 : 118,866.48 = 20,079.94 : x
  2. Step 2: Convert to fraction form
    79,244.44/118,866.48 = 20,079.94/x
  3. Step 3: Cross multiply
    79,244.44x = 118,866.48 × 20,079.94
  4. Step 4: Simplify right side
    79,244.44x = 2,386,831,786.41
  5. Step 5: Solve for x
    x = 2,386,831,786.41/79,244.44
  6. Step 6: Final answer
    x = 30,119.86

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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.