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Finding the Fourth Proportional to 192,863.88, 266,136.84 and 107,969.40

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Solution

The fourth proportional to 192,863.88, 266,136.84 and 107,969.40 is: 148,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,863.88 : 266,136.84 = 107,969.40 : x
  2. Step 2: Convert to fraction form
    192,863.88/266,136.84 = 107,969.40/x
  3. Step 3: Cross multiply
    192,863.88x = 266,136.84 × 107,969.40
  4. Step 4: Simplify right side
    192,863.88x = 28,734,634,932.70
  5. Step 5: Solve for x
    x = 28,734,634,932.70/192,863.88
  6. Step 6: Final answer
    x = 148,989.20

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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.