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Finding the Fourth Proportional to 192,760.92, 288,985.56 and 80,527.12

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Solution

The fourth proportional to 192,760.92, 288,985.56 and 80,527.12 is: 120,725.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,760.92 : 288,985.56 = 80,527.12 : x
  2. Step 2: Convert to fraction form
    192,760.92/288,985.56 = 80,527.12/x
  3. Step 3: Cross multiply
    192,760.92x = 288,985.56 × 80,527.12
  4. Step 4: Simplify right side
    192,760.92x = 23,271,174,868.39
  5. Step 5: Solve for x
    x = 23,271,174,868.39/192,760.92
  6. Step 6: Final answer
    x = 120,725.59

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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.