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Finding the Fourth Proportional to 199,535.89, 275,357.17 and 108,893.40

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Solution

The fourth proportional to 199,535.89, 275,357.17 and 108,893.40 is: 150,271.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,535.89 : 275,357.17 = 108,893.40 : x
  2. Step 2: Convert to fraction form
    199,535.89/275,357.17 = 108,893.40/x
  3. Step 3: Cross multiply
    199,535.89x = 275,357.17 × 108,893.40
  4. Step 4: Simplify right side
    199,535.89x = 29,984,577,078.89
  5. Step 5: Solve for x
    x = 29,984,577,078.89/199,535.89
  6. Step 6: Final answer
    x = 150,271.60

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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.