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Finding the Fourth Proportional to 193,856.76, 290,859.26 and 75,610.53

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Solution

The fourth proportional to 193,856.76, 290,859.26 and 75,610.53 is: 113,444.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,856.76 : 290,859.26 = 75,610.53 : x
  2. Step 2: Convert to fraction form
    193,856.76/290,859.26 = 75,610.53/x
  3. Step 3: Cross multiply
    193,856.76x = 290,859.26 × 75,610.53
  4. Step 4: Simplify right side
    193,856.76x = 21,992,022,425.96
  5. Step 5: Solve for x
    x = 21,992,022,425.96/193,856.76
  6. Step 6: Final answer
    x = 113,444.70

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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.