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Finding the Fourth Proportional to 192,369.57, 288,568.85 and 57,422.98

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Solution

The fourth proportional to 192,369.57, 288,568.85 and 57,422.98 is: 86,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,369.57 : 288,568.85 = 57,422.98 : x
  2. Step 2: Convert to fraction form
    192,369.57/288,568.85 = 57,422.98/x
  3. Step 3: Cross multiply
    192,369.57x = 288,568.85 × 57,422.98
  4. Step 4: Simplify right side
    192,369.57x = 16,570,481,994.82
  5. Step 5: Solve for x
    x = 16,570,481,994.82/192,369.57
  6. Step 6: Final answer
    x = 86,138.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.