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Finding the Fourth Proportional to 243,185.45, 335,570.42 and 141,190.99

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Solution

The fourth proportional to 243,185.45, 335,570.42 and 141,190.99 is: 194,828.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,185.45 : 335,570.42 = 141,190.99 : x
  2. Step 2: Convert to fraction form
    243,185.45/335,570.42 = 141,190.99/x
  3. Step 3: Cross multiply
    243,185.45x = 335,570.42 × 141,190.99
  4. Step 4: Simplify right side
    243,185.45x = 47,379,519,563.41
  5. Step 5: Solve for x
    x = 47,379,519,563.41/243,185.45
  6. Step 6: Final answer
    x = 194,828.76

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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.