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Finding the Fourth Proportional to 166,369.94, 229,590.62 and 90,918.44

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Solution

The fourth proportional to 166,369.94, 229,590.62 and 90,918.44 is: 125,467.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,369.94 : 229,590.62 = 90,918.44 : x
  2. Step 2: Convert to fraction form
    166,369.94/229,590.62 = 90,918.44/x
  3. Step 3: Cross multiply
    166,369.94x = 229,590.62 × 90,918.44
  4. Step 4: Simplify right side
    166,369.94x = 20,874,021,009.03
  5. Step 5: Solve for x
    x = 20,874,021,009.03/166,369.94
  6. Step 6: Final answer
    x = 125,467.50

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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.