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Finding the Fourth Proportional to 165,918.80, 248,879.10 and 41,259.80

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Solution

The fourth proportional to 165,918.80, 248,879.10 and 41,259.80 is: 61,889.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,918.80 : 248,879.10 = 41,259.80 : x
  2. Step 2: Convert to fraction form
    165,918.80/248,879.10 = 41,259.80/x
  3. Step 3: Cross multiply
    165,918.80x = 248,879.10 × 41,259.80
  4. Step 4: Simplify right side
    165,918.80x = 10,268,701,890.18
  5. Step 5: Solve for x
    x = 10,268,701,890.18/165,918.80
  6. Step 6: Final answer
    x = 61,889.92

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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.