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Finding the Fourth Proportional to 110,938.20, 166,431.60 and 36,045.60

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Solution

The fourth proportional to 110,938.20, 166,431.60 and 36,045.60 is: 54,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,938.20 : 166,431.60 = 36,045.60 : x
  2. Step 2: Convert to fraction form
    110,938.20/166,431.60 = 36,045.60/x
  3. Step 3: Cross multiply
    110,938.20x = 166,431.60 × 36,045.60
  4. Step 4: Simplify right side
    110,938.20x = 5,999,126,880.96
  5. Step 5: Solve for x
    x = 5,999,126,880.96/110,938.20
  6. Step 6: Final answer
    x = 54,076.30

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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.