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Finding the Fourth Proportional to 230,761.60, 346,027.20 and 105,961.60

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Solution

The fourth proportional to 230,761.60, 346,027.20 and 105,961.60 is: 158,889.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,761.60 : 346,027.20 = 105,961.60 : x
  2. Step 2: Convert to fraction form
    230,761.60/346,027.20 = 105,961.60/x
  3. Step 3: Cross multiply
    230,761.60x = 346,027.20 × 105,961.60
  4. Step 4: Simplify right side
    230,761.60x = 36,665,595,755.52
  5. Step 5: Solve for x
    x = 36,665,595,755.52/230,761.60
  6. Step 6: Final answer
    x = 158,889.50

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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.