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Finding the Fourth Proportional to 192,642, 265,845.96 and 125,574

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Solution

The fourth proportional to 192,642, 265,845.96 and 125,574 is: 173,292.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,642 : 265,845.96 = 125,574 : x
  2. Step 2: Convert to fraction form
    192,642/265,845.96 = 125,574/x
  3. Step 3: Cross multiply
    192,642x = 265,845.96 × 125,574
  4. Step 4: Simplify right side
    192,642x = 33,383,340,581.04
  5. Step 5: Solve for x
    x = 33,383,340,581.04/192,642
  6. Step 6: Final answer
    x = 173,292.12

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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.