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Finding the Fourth Proportional to 263,663.52, 395,495.04 and 105,892

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Solution

The fourth proportional to 263,663.52, 395,495.04 and 105,892 is: 158,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,663.52 : 395,495.04 = 105,892 : x
  2. Step 2: Convert to fraction form
    263,663.52/395,495.04 = 105,892/x
  3. Step 3: Cross multiply
    263,663.52x = 395,495.04 × 105,892
  4. Step 4: Simplify right side
    263,663.52x = 41,879,760,775.68
  5. Step 5: Solve for x
    x = 41,879,760,775.68/263,663.52
  6. Step 6: Final answer
    x = 158,837.90

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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.