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Finding the Fourth Proportional to 259,654.50, 389,481.75 and 62,662.50

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Solution

The fourth proportional to 259,654.50, 389,481.75 and 62,662.50 is: 93,993.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,654.50 : 389,481.75 = 62,662.50 : x
  2. Step 2: Convert to fraction form
    259,654.50/389,481.75 = 62,662.50/x
  3. Step 3: Cross multiply
    259,654.50x = 389,481.75 × 62,662.50
  4. Step 4: Simplify right side
    259,654.50x = 24,405,900,159.38
  5. Step 5: Solve for x
    x = 24,405,900,159.38/259,654.50
  6. Step 6: Final answer
    x = 93,993.75

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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.