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Finding the Fourth Proportional to 199,665.61, 275,544.21 and 109,027.32

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Solution

The fourth proportional to 199,665.61, 275,544.21 and 109,027.32 is: 150,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,665.61 : 275,544.21 = 109,027.32 : x
  2. Step 2: Convert to fraction form
    199,665.61/275,544.21 = 109,027.32/x
  3. Step 3: Cross multiply
    199,665.61x = 275,544.21 × 109,027.32
  4. Step 4: Simplify right side
    199,665.61x = 30,041,846,757.82
  5. Step 5: Solve for x
    x = 30,041,846,757.82/199,665.61
  6. Step 6: Final answer
    x = 150,460.80

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1.5x scale

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.