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Finding the Fourth Proportional to 303,899.75, 419,381.67 and 169,763.75

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Solution

The fourth proportional to 303,899.75, 419,381.67 and 169,763.75 is: 234,273.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,899.75 : 419,381.67 = 169,763.75 : x
  2. Step 2: Convert to fraction form
    303,899.75/419,381.67 = 169,763.75/x
  3. Step 3: Cross multiply
    303,899.75x = 419,381.67 × 169,763.75
  4. Step 4: Simplify right side
    303,899.75x = 71,195,804,980.46
  5. Step 5: Solve for x
    x = 71,195,804,980.46/303,899.75
  6. Step 6: Final answer
    x = 234,273.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.