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Finding the Fourth Proportional to 270,367.69, 405,579.03 and 92,851.64

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Solution

The fourth proportional to 270,367.69, 405,579.03 and 92,851.64 is: 139,286.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,367.69 : 405,579.03 = 92,851.64 : x
  2. Step 2: Convert to fraction form
    270,367.69/405,579.03 = 92,851.64/x
  3. Step 3: Cross multiply
    270,367.69x = 405,579.03 × 92,851.64
  4. Step 4: Simplify right side
    270,367.69x = 37,658,678,085.11
  5. Step 5: Solve for x
    x = 37,658,678,085.11/270,367.69
  6. Step 6: Final answer
    x = 139,286.90

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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.