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Finding the Fourth Proportional to 192,783.60, 289,866.60 and 162,370.80

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Solution

The fourth proportional to 192,783.60, 289,866.60 and 162,370.80 is: 244,138.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,783.60 : 289,866.60 = 162,370.80 : x
  2. Step 2: Convert to fraction form
    192,783.60/289,866.60 = 162,370.80/x
  3. Step 3: Cross multiply
    192,783.60x = 289,866.60 × 162,370.80
  4. Step 4: Simplify right side
    192,783.60x = 47,065,871,735.28
  5. Step 5: Solve for x
    x = 47,065,871,735.28/192,783.60
  6. Step 6: Final answer
    x = 244,138.36

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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.