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Finding the Fourth Proportional to 120,079.14, 180,112.22 and 60,913.27

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Solution

The fourth proportional to 120,079.14, 180,112.22 and 60,913.27 is: 91,366.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,079.14 : 180,112.22 = 60,913.27 : x
  2. Step 2: Convert to fraction form
    120,079.14/180,112.22 = 60,913.27/x
  3. Step 3: Cross multiply
    120,079.14x = 180,112.22 × 60,913.27
  4. Step 4: Simplify right side
    120,079.14x = 10,971,224,771.41
  5. Step 5: Solve for x
    x = 10,971,224,771.41/120,079.14
  6. Step 6: Final answer
    x = 91,366.62

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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.