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Finding the Fourth Proportional to 118,935.33, 178,053.06 and 79,394.37

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Solution

The fourth proportional to 118,935.33, 178,053.06 and 79,394.37 is: 118,857.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,935.33 : 178,053.06 = 79,394.37 : x
  2. Step 2: Convert to fraction form
    118,935.33/178,053.06 = 79,394.37/x
  3. Step 3: Cross multiply
    118,935.33x = 178,053.06 × 79,394.37
  4. Step 4: Simplify right side
    118,935.33x = 14,136,410,525.27
  5. Step 5: Solve for x
    x = 14,136,410,525.27/118,935.33
  6. Step 6: Final answer
    x = 118,857.96

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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.