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Finding the Fourth Proportional to 226,498.68, 339,749.10 and 68,728.50

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Solution

The fourth proportional to 226,498.68, 339,749.10 and 68,728.50 is: 103,093.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,498.68 : 339,749.10 = 68,728.50 : x
  2. Step 2: Convert to fraction form
    226,498.68/339,749.10 = 68,728.50/x
  3. Step 3: Cross multiply
    226,498.68x = 339,749.10 × 68,728.50
  4. Step 4: Simplify right side
    226,498.68x = 23,350,446,019.35
  5. Step 5: Solve for x
    x = 23,350,446,019.35/226,498.68
  6. Step 6: Final answer
    x = 103,093.08

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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.