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Finding the Fourth Proportional to 192,805, 289,249.64 and 57,863.32

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Solution

The fourth proportional to 192,805, 289,249.64 and 57,863.32 is: 86,807.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,805 : 289,249.64 = 57,863.32 : x
  2. Step 2: Convert to fraction form
    192,805/289,249.64 = 57,863.32/x
  3. Step 3: Cross multiply
    192,805x = 289,249.64 × 57,863.32
  4. Step 4: Simplify right side
    192,805x = 16,736,944,479.20
  5. Step 5: Solve for x
    x = 16,736,944,479.20/192,805
  6. Step 6: Final answer
    x = 86,807.63

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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.