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Finding the Fourth Proportional to 239,990.50, 360,044.07 and 73,778.50

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Solution

The fourth proportional to 239,990.50, 360,044.07 and 73,778.50 is: 110,685.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,990.50 : 360,044.07 = 73,778.50 : x
  2. Step 2: Convert to fraction form
    239,990.50/360,044.07 = 73,778.50/x
  3. Step 3: Cross multiply
    239,990.50x = 360,044.07 × 73,778.50
  4. Step 4: Simplify right side
    239,990.50x = 26,563,511,418.50
  5. Step 5: Solve for x
    x = 26,563,511,418.50/239,990.50
  6. Step 6: Final answer
    x = 110,685.68

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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.