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Finding the Fourth Proportional to 270,388.99, 405,627.23 and 112,633.39

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Solution

The fourth proportional to 270,388.99, 405,627.23 and 112,633.39 is: 168,968.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,388.99 : 405,627.23 = 112,633.39 : x
  2. Step 2: Convert to fraction form
    270,388.99/405,627.23 = 112,633.39/x
  3. Step 3: Cross multiply
    270,388.99x = 405,627.23 × 112,633.39
  4. Step 4: Simplify right side
    270,388.99x = 45,687,169,991.21
  5. Step 5: Solve for x
    x = 45,687,169,991.21/270,388.99
  6. Step 6: Final answer
    x = 168,968.31

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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.