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Finding the Fourth Proportional to 238,123.08, 356,936.22 and 80,297.28

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Solution

The fourth proportional to 238,123.08, 356,936.22 and 80,297.28 is: 120,362.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,123.08 : 356,936.22 = 80,297.28 : x
  2. Step 2: Convert to fraction form
    238,123.08/356,936.22 = 80,297.28/x
  3. Step 3: Cross multiply
    238,123.08x = 356,936.22 × 80,297.28
  4. Step 4: Simplify right side
    238,123.08x = 28,661,007,599.48
  5. Step 5: Solve for x
    x = 28,661,007,599.48/238,123.08
  6. Step 6: Final answer
    x = 120,362.16

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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.