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Finding the Fourth Proportional to 111,705.91, 167,506.22 and 40,578.41

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Solution

The fourth proportional to 111,705.91, 167,506.22 and 40,578.41 is: 60,848.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,705.91 : 167,506.22 = 40,578.41 : x
  2. Step 2: Convert to fraction form
    111,705.91/167,506.22 = 40,578.41/x
  3. Step 3: Cross multiply
    111,705.91x = 167,506.22 × 40,578.41
  4. Step 4: Simplify right side
    111,705.91x = 6,797,136,072.71
  5. Step 5: Solve for x
    x = 6,797,136,072.71/111,705.91
  6. Step 6: Final answer
    x = 60,848.49

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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.