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Finding the Fourth Proportional to 108,679.70, 163,020.11 and 49,473.96

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Solution

The fourth proportional to 108,679.70, 163,020.11 and 49,473.96 is: 74,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,679.70 : 163,020.11 = 49,473.96 : x
  2. Step 2: Convert to fraction form
    108,679.70/163,020.11 = 49,473.96/x
  3. Step 3: Cross multiply
    108,679.70x = 163,020.11 × 49,473.96
  4. Step 4: Simplify right side
    108,679.70x = 8,065,250,153.97
  5. Step 5: Solve for x
    x = 8,065,250,153.97/108,679.70
  6. Step 6: Final answer
    x = 74,211.20

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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.