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Finding the Fourth Proportional to 192,856.95, 289,304.46 and 66,480.56

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Solution

The fourth proportional to 192,856.95, 289,304.46 and 66,480.56 is: 99,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,856.95 : 289,304.46 = 66,480.56 : x
  2. Step 2: Convert to fraction form
    192,856.95/289,304.46 = 66,480.56/x
  3. Step 3: Cross multiply
    192,856.95x = 289,304.46 × 66,480.56
  4. Step 4: Simplify right side
    192,856.95x = 19,233,122,511.30
  5. Step 5: Solve for x
    x = 19,233,122,511.30/192,856.95
  6. Step 6: Final answer
    x = 99,727.40

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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.