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Finding the Fourth Proportional to 239,796.45, 359,694.63 and 71,316.09

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Solution

The fourth proportional to 239,796.45, 359,694.63 and 71,316.09 is: 106,974.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,796.45 : 359,694.63 = 71,316.09 : x
  2. Step 2: Convert to fraction form
    239,796.45/359,694.63 = 71,316.09/x
  3. Step 3: Cross multiply
    239,796.45x = 359,694.63 × 71,316.09
  4. Step 4: Simplify right side
    239,796.45x = 25,652,014,605.60
  5. Step 5: Solve for x
    x = 25,652,014,605.60/239,796.45
  6. Step 6: Final answer
    x = 106,974.12

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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.