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Finding the Fourth Proportional to 192,690.40, 289,035.60 and 173,007.40

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Solution

The fourth proportional to 192,690.40, 289,035.60 and 173,007.40 is: 259,511.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,690.40 : 289,035.60 = 173,007.40 : x
  2. Step 2: Convert to fraction form
    192,690.40/289,035.60 = 173,007.40/x
  3. Step 3: Cross multiply
    192,690.40x = 289,035.60 × 173,007.40
  4. Step 4: Simplify right side
    192,690.40x = 50,005,297,663.44
  5. Step 5: Solve for x
    x = 50,005,297,663.44/192,690.40
  6. Step 6: Final answer
    x = 259,511.10

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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.