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Finding the Fourth Proportional to 192,427.20, 289,029.60 and 185,817.60

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Solution

The fourth proportional to 192,427.20, 289,029.60 and 185,817.60 is: 279,101.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,427.20 : 289,029.60 = 185,817.60 : x
  2. Step 2: Convert to fraction form
    192,427.20/289,029.60 = 185,817.60/x
  3. Step 3: Cross multiply
    192,427.20x = 289,029.60 × 185,817.60
  4. Step 4: Simplify right side
    192,427.20x = 53,706,786,600.96
  5. Step 5: Solve for x
    x = 53,706,786,600.96/192,427.20
  6. Step 6: Final answer
    x = 279,101.85

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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.