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Finding the Fourth Proportional to 197,992.80, 296,989.20 and 192,160.80

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Solution

The fourth proportional to 197,992.80, 296,989.20 and 192,160.80 is: 288,241.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,992.80 : 296,989.20 = 192,160.80 : x
  2. Step 2: Convert to fraction form
    197,992.80/296,989.20 = 192,160.80/x
  3. Step 3: Cross multiply
    197,992.80x = 296,989.20 × 192,160.80
  4. Step 4: Simplify right side
    197,992.80x = 57,069,682,263.36
  5. Step 5: Solve for x
    x = 57,069,682,263.36/197,992.80
  6. Step 6: Final answer
    x = 288,241.20

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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.