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Finding the Fourth Proportional to 273,795.65, 410,111.18 and 131,431.06

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Solution

The fourth proportional to 273,795.65, 410,111.18 and 131,431.06 is: 196,867.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,795.65 : 410,111.18 = 131,431.06 : x
  2. Step 2: Convert to fraction form
    273,795.65/410,111.18 = 131,431.06/x
  3. Step 3: Cross multiply
    273,795.65x = 410,111.18 × 131,431.06
  4. Step 4: Simplify right side
    273,795.65x = 53,901,347,105.25
  5. Step 5: Solve for x
    x = 53,901,347,105.25/273,795.65
  6. Step 6: Final answer
    x = 196,867.07

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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.