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Finding the Fourth Proportional to 192,670.56, 265,890.60 and 107,786.88

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Solution

The fourth proportional to 192,670.56, 265,890.60 and 107,786.88 is: 148,748.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,670.56 : 265,890.60 = 107,786.88 : x
  2. Step 2: Convert to fraction form
    192,670.56/265,890.60 = 107,786.88/x
  3. Step 3: Cross multiply
    192,670.56x = 265,890.60 × 107,786.88
  4. Step 4: Simplify right side
    192,670.56x = 28,659,518,195.33
  5. Step 5: Solve for x
    x = 28,659,518,195.33/192,670.56
  6. Step 6: Final answer
    x = 148,748.82

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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.