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Finding the Fourth Proportional to 192,733.20, 289,099.80 and 68,086.80

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Solution

The fourth proportional to 192,733.20, 289,099.80 and 68,086.80 is: 102,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,733.20 : 289,099.80 = 68,086.80 : x
  2. Step 2: Convert to fraction form
    192,733.20/289,099.80 = 68,086.80/x
  3. Step 3: Cross multiply
    192,733.20x = 289,099.80 × 68,086.80
  4. Step 4: Simplify right side
    192,733.20x = 19,683,880,262.64
  5. Step 5: Solve for x
    x = 19,683,880,262.64/192,733.20
  6. Step 6: Final answer
    x = 102,130.20

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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.