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Finding the Fourth Proportional to 111,351.90, 167,048.10 and 36,451.20

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Solution

The fourth proportional to 111,351.90, 167,048.10 and 36,451.20 is: 54,683.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,351.90 : 167,048.10 = 36,451.20 : x
  2. Step 2: Convert to fraction form
    111,351.90/167,048.10 = 36,451.20/x
  3. Step 3: Cross multiply
    111,351.90x = 167,048.10 × 36,451.20
  4. Step 4: Simplify right side
    111,351.90x = 6,089,103,702.72
  5. Step 5: Solve for x
    x = 6,089,103,702.72/111,351.90
  6. Step 6: Final answer
    x = 54,683.43

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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.