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Finding the Fourth Proportional to 192,043.80, 264,993.96 and 107,144.40

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Solution

The fourth proportional to 192,043.80, 264,993.96 and 107,144.40 is: 147,844.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,043.80 : 264,993.96 = 107,144.40 : x
  2. Step 2: Convert to fraction form
    192,043.80/264,993.96 = 107,144.40/x
  3. Step 3: Cross multiply
    192,043.80x = 264,993.96 × 107,144.40
  4. Step 4: Simplify right side
    192,043.80x = 28,392,618,847.82
  5. Step 5: Solve for x
    x = 28,392,618,847.82/192,043.80
  6. Step 6: Final answer
    x = 147,844.50

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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.