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Finding the Fourth Proportional to 181,644.40, 272,466.60 and 111,563.20

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Solution

The fourth proportional to 181,644.40, 272,466.60 and 111,563.20 is: 167,344.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,644.40 : 272,466.60 = 111,563.20 : x
  2. Step 2: Convert to fraction form
    181,644.40/272,466.60 = 111,563.20/x
  3. Step 3: Cross multiply
    181,644.40x = 272,466.60 × 111,563.20
  4. Step 4: Simplify right side
    181,644.40x = 30,397,245,789.12
  5. Step 5: Solve for x
    x = 30,397,245,789.12/181,644.40
  6. Step 6: Final answer
    x = 167,344.80

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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.