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Finding the Fourth Proportional to 199,611.10, 275,464.02 and 108,969.08

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Solution

The fourth proportional to 199,611.10, 275,464.02 and 108,969.08 is: 150,377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,611.10 : 275,464.02 = 108,969.08 : x
  2. Step 2: Convert to fraction form
    199,611.10/275,464.02 = 108,969.08/x
  3. Step 3: Cross multiply
    199,611.10x = 275,464.02 × 108,969.08
  4. Step 4: Simplify right side
    199,611.10x = 30,017,060,832.50
  5. Step 5: Solve for x
    x = 30,017,060,832.50/199,611.10
  6. Step 6: Final answer
    x = 150,377.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.