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Finding the Fourth Proportional to 273,911.06, 410,866.59 and 74,231.45

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Solution

The fourth proportional to 273,911.06, 410,866.59 and 74,231.45 is: 111,347.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,911.06 : 410,866.59 = 74,231.45 : x
  2. Step 2: Convert to fraction form
    273,911.06/410,866.59 = 74,231.45/x
  3. Step 3: Cross multiply
    273,911.06x = 410,866.59 × 74,231.45
  4. Step 4: Simplify right side
    273,911.06x = 30,499,222,732.26
  5. Step 5: Solve for x
    x = 30,499,222,732.26/273,911.06
  6. Step 6: Final answer
    x = 111,347.18

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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.