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Finding the Fourth Proportional to 192,853.55, 289,103.09 and 66,463.77

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Solution

The fourth proportional to 192,853.55, 289,103.09 and 66,463.77 is: 99,634.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,853.55 : 289,103.09 = 66,463.77 : x
  2. Step 2: Convert to fraction form
    192,853.55/289,103.09 = 66,463.77/x
  3. Step 3: Cross multiply
    192,853.55x = 289,103.09 × 66,463.77
  4. Step 4: Simplify right side
    192,853.55x = 19,214,880,947.73
  5. Step 5: Solve for x
    x = 19,214,880,947.73/192,853.55
  6. Step 6: Final answer
    x = 99,634.57

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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.