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Finding the Fourth Proportional to 193,859.86, 290,789.90 and 60,750.54

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Solution

The fourth proportional to 193,859.86, 290,789.90 and 60,750.54 is: 91,125.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,859.86 : 290,789.90 = 60,750.54 : x
  2. Step 2: Convert to fraction form
    193,859.86/290,789.90 = 60,750.54/x
  3. Step 3: Cross multiply
    193,859.86x = 290,789.90 × 60,750.54
  4. Step 4: Simplify right side
    193,859.86x = 17,665,643,451.55
  5. Step 5: Solve for x
    x = 17,665,643,451.55/193,859.86
  6. Step 6: Final answer
    x = 91,125.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.