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Finding the Fourth Proportional to 226,486.24, 339,730.08 and 68,716

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Solution

The fourth proportional to 226,486.24, 339,730.08 and 68,716 is: 103,074.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,486.24 : 339,730.08 = 68,716 : x
  2. Step 2: Convert to fraction form
    226,486.24/339,730.08 = 68,716/x
  3. Step 3: Cross multiply
    226,486.24x = 339,730.08 × 68,716
  4. Step 4: Simplify right side
    226,486.24x = 23,344,892,177.28
  5. Step 5: Solve for x
    x = 23,344,892,177.28/226,486.24
  6. Step 6: Final answer
    x = 103,074.22

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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.