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Finding the Fourth Proportional to 259,068.63, 388,104.39 and 158,936.43

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Solution

The fourth proportional to 259,068.63, 388,104.39 and 158,936.43 is: 238,098.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,068.63 : 388,104.39 = 158,936.43 : x
  2. Step 2: Convert to fraction form
    259,068.63/388,104.39 = 158,936.43/x
  3. Step 3: Cross multiply
    259,068.63x = 388,104.39 × 158,936.43
  4. Step 4: Simplify right side
    259,068.63x = 61,683,926,213.93
  5. Step 5: Solve for x
    x = 61,683,926,213.93/259,068.63
  6. Step 6: Final answer
    x = 238,098.79

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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.