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Finding the Fourth Proportional to 366,958.56, 550,378.80 and 100,657.29

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Solution

The fourth proportional to 366,958.56, 550,378.80 and 100,657.29 is: 150,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,958.56 : 550,378.80 = 100,657.29 : x
  2. Step 2: Convert to fraction form
    366,958.56/550,378.80 = 100,657.29/x
  3. Step 3: Cross multiply
    366,958.56x = 550,378.80 × 100,657.29
  4. Step 4: Simplify right side
    366,958.56x = 55,399,638,481.45
  5. Step 5: Solve for x
    x = 55,399,638,481.45/366,958.56
  6. Step 6: Final answer
    x = 150,969.74

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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.