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Finding the Fourth Proportional to 165,891.40, 248,837.10 and 55,083.40

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Solution

The fourth proportional to 165,891.40, 248,837.10 and 55,083.40 is: 82,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,891.40 : 248,837.10 = 55,083.40 : x
  2. Step 2: Convert to fraction form
    165,891.40/248,837.10 = 55,083.40/x
  3. Step 3: Cross multiply
    165,891.40x = 248,837.10 × 55,083.40
  4. Step 4: Simplify right side
    165,891.40x = 13,706,793,514.14
  5. Step 5: Solve for x
    x = 13,706,793,514.14/165,891.40
  6. Step 6: Final answer
    x = 82,625.10

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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.