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Finding the Fourth Proportional to 225,889.56, 338,747.88 and 76,089.60

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Solution

The fourth proportional to 225,889.56, 338,747.88 and 76,089.60 is: 114,105.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,889.56 : 338,747.88 = 76,089.60 : x
  2. Step 2: Convert to fraction form
    225,889.56/338,747.88 = 76,089.60/x
  3. Step 3: Cross multiply
    225,889.56x = 338,747.88 × 76,089.60
  4. Step 4: Simplify right side
    225,889.56x = 25,775,190,690.05
  5. Step 5: Solve for x
    x = 25,775,190,690.05/225,889.56
  6. Step 6: Final answer
    x = 114,105.28

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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.