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Finding the Fourth Proportional to 192,573.96, 265,788.80 and 129,022.56

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Solution

The fourth proportional to 192,573.96, 265,788.80 and 129,022.56 is: 178,075.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,573.96 : 265,788.80 = 129,022.56 : x
  2. Step 2: Convert to fraction form
    192,573.96/265,788.80 = 129,022.56/x
  3. Step 3: Cross multiply
    192,573.96x = 265,788.80 × 129,022.56
  4. Step 4: Simplify right side
    192,573.96x = 34,292,751,395.33
  5. Step 5: Solve for x
    x = 34,292,751,395.33/192,573.96
  6. Step 6: Final answer
    x = 178,075.75

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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.