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Finding the Fourth Proportional to 192,636, 265,837.68 and 125,568

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Solution

The fourth proportional to 192,636, 265,837.68 and 125,568 is: 173,283.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,636 : 265,837.68 = 125,568 : x
  2. Step 2: Convert to fraction form
    192,636/265,837.68 = 125,568/x
  3. Step 3: Cross multiply
    192,636x = 265,837.68 × 125,568
  4. Step 4: Simplify right side
    192,636x = 33,380,705,802.24
  5. Step 5: Solve for x
    x = 33,380,705,802.24/192,636
  6. Step 6: Final answer
    x = 173,283.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.