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Finding the Fourth Proportional to 99,481.96, 149,274.78 and 44,065

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Solution

The fourth proportional to 99,481.96, 149,274.78 and 44,065 is: 66,120.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,481.96 : 149,274.78 = 44,065 : x
  2. Step 2: Convert to fraction form
    99,481.96/149,274.78 = 44,065/x
  3. Step 3: Cross multiply
    99,481.96x = 149,274.78 × 44,065
  4. Step 4: Simplify right side
    99,481.96x = 6,577,793,180.70
  5. Step 5: Solve for x
    x = 6,577,793,180.70/99,481.96
  6. Step 6: Final answer
    x = 66,120.46

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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.