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Finding the Fourth Proportional to 190,961.60, 263,513.60 and 106,073.60

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Solution

The fourth proportional to 190,961.60, 263,513.60 and 106,073.60 is: 146,374.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,961.60 : 263,513.60 = 106,073.60 : x
  2. Step 2: Convert to fraction form
    190,961.60/263,513.60 = 106,073.60/x
  3. Step 3: Cross multiply
    190,961.60x = 263,513.60 × 106,073.60
  4. Step 4: Simplify right side
    190,961.60x = 27,951,836,200.96
  5. Step 5: Solve for x
    x = 27,951,836,200.96/190,961.60
  6. Step 6: Final answer
    x = 146,374.12

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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.