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Finding the Fourth Proportional to 192,793.20, 289,175.40 and 80,444.40

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Solution

The fourth proportional to 192,793.20, 289,175.40 and 80,444.40 is: 120,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,793.20 : 289,175.40 = 80,444.40 : x
  2. Step 2: Convert to fraction form
    192,793.20/289,175.40 = 80,444.40/x
  3. Step 3: Cross multiply
    192,793.20x = 289,175.40 × 80,444.40
  4. Step 4: Simplify right side
    192,793.20x = 23,262,541,547.76
  5. Step 5: Solve for x
    x = 23,262,541,547.76/192,793.20
  6. Step 6: Final answer
    x = 120,660.59

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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.