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Finding the Fourth Proportional to 144,490.44, 199,389.06 and 79,956.84

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Solution

The fourth proportional to 144,490.44, 199,389.06 and 79,956.84 is: 110,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,490.44 : 199,389.06 = 79,956.84 : x
  2. Step 2: Convert to fraction form
    144,490.44/199,389.06 = 79,956.84/x
  3. Step 3: Cross multiply
    144,490.44x = 199,389.06 × 79,956.84
  4. Step 4: Simplify right side
    144,490.44x = 15,942,519,168.17
  5. Step 5: Solve for x
    x = 15,942,519,168.17/144,490.44
  6. Step 6: Final answer
    x = 110,336.15

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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.