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Finding the Fourth Proportional to 281,555.26, 422,329.32 and 68,324.92

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Solution

The fourth proportional to 281,555.26, 422,329.32 and 68,324.92 is: 102,486.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,555.26 : 422,329.32 = 68,324.92 : x
  2. Step 2: Convert to fraction form
    281,555.26/422,329.32 = 68,324.92/x
  3. Step 3: Cross multiply
    281,555.26x = 422,329.32 × 68,324.92
  4. Step 4: Simplify right side
    281,555.26x = 28,855,617,002.65
  5. Step 5: Solve for x
    x = 28,855,617,002.65/281,555.26
  6. Step 6: Final answer
    x = 102,486.51

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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.