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Finding the Fourth Proportional to 192,573.67, 265,743.84 and 105,357.37

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Solution

The fourth proportional to 192,573.67, 265,743.84 and 105,357.37 is: 145,388.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,573.67 : 265,743.84 = 105,357.37 : x
  2. Step 2: Convert to fraction form
    192,573.67/265,743.84 = 105,357.37/x
  3. Step 3: Cross multiply
    192,573.67x = 265,743.84 × 105,357.37
  4. Step 4: Simplify right side
    192,573.67x = 27,998,072,076.10
  5. Step 5: Solve for x
    x = 27,998,072,076.10/192,573.67
  6. Step 6: Final answer
    x = 145,388.89

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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.