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Finding the Fourth Proportional to 108,901.44, 163,372.55 and 48,928.43

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Solution

The fourth proportional to 108,901.44, 163,372.55 and 48,928.43 is: 73,401.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,901.44 : 163,372.55 = 48,928.43 : x
  2. Step 2: Convert to fraction form
    108,901.44/163,372.55 = 48,928.43/x
  3. Step 3: Cross multiply
    108,901.44x = 163,372.55 × 48,928.43
  4. Step 4: Simplify right side
    108,901.44x = 7,993,562,080.90
  5. Step 5: Solve for x
    x = 7,993,562,080.90/108,901.44
  6. Step 6: Final answer
    x = 73,401.81

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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.