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Finding the Fourth Proportional to 108,986.46, 163,420.41 and 34,074.30

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Solution

The fourth proportional to 108,986.46, 163,420.41 and 34,074.30 is: 51,092.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,986.46 : 163,420.41 = 34,074.30 : x
  2. Step 2: Convert to fraction form
    108,986.46/163,420.41 = 34,074.30/x
  3. Step 3: Cross multiply
    108,986.46x = 163,420.41 × 34,074.30
  4. Step 4: Simplify right side
    108,986.46x = 5,568,436,076.46
  5. Step 5: Solve for x
    x = 5,568,436,076.46/108,986.46
  6. Step 6: Final answer
    x = 51,092.92

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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.