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Finding the Fourth Proportional to 281,589.06, 422,379.06 and 68,358.66

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Solution

The fourth proportional to 281,589.06, 422,379.06 and 68,358.66 is: 102,536.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,589.06 : 422,379.06 = 68,358.66 : x
  2. Step 2: Convert to fraction form
    281,589.06/422,379.06 = 68,358.66/x
  3. Step 3: Cross multiply
    281,589.06x = 422,379.06 × 68,358.66
  4. Step 4: Simplify right side
    281,589.06x = 28,873,266,553.66
  5. Step 5: Solve for x
    x = 28,873,266,553.66/281,589.06
  6. Step 6: Final answer
    x = 102,536.89

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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.