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Finding the Fourth Proportional to 239,647.75, 359,478.11 and 73,435.75

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Solution

The fourth proportional to 239,647.75, 359,478.11 and 73,435.75 is: 110,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,647.75 : 359,478.11 = 73,435.75 : x
  2. Step 2: Convert to fraction form
    239,647.75/359,478.11 = 73,435.75/x
  3. Step 3: Cross multiply
    239,647.75x = 359,478.11 × 73,435.75
  4. Step 4: Simplify right side
    239,647.75x = 26,398,544,616.43
  5. Step 5: Solve for x
    x = 26,398,544,616.43/239,647.75
  6. Step 6: Final answer
    x = 110,155.61

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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.