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Finding the Fourth Proportional to 199,485.64, 275,294.46 and 108,843.40

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Solution

The fourth proportional to 199,485.64, 275,294.46 and 108,843.40 is: 150,206.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,485.64 : 275,294.46 = 108,843.40 : x
  2. Step 2: Convert to fraction form
    199,485.64/275,294.46 = 108,843.40/x
  3. Step 3: Cross multiply
    199,485.64x = 275,294.46 × 108,843.40
  4. Step 4: Simplify right side
    199,485.64x = 29,963,985,027.56
  5. Step 5: Solve for x
    x = 29,963,985,027.56/199,485.64
  6. Step 6: Final answer
    x = 150,206.23

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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.