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Finding the Fourth Proportional to 146,241.40, 218,924.70 and 87,046.60

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Solution

The fourth proportional to 146,241.40, 218,924.70 and 87,046.60 is: 130,309.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,241.40 : 218,924.70 = 87,046.60 : x
  2. Step 2: Convert to fraction form
    146,241.40/218,924.70 = 87,046.60/x
  3. Step 3: Cross multiply
    146,241.40x = 218,924.70 × 87,046.60
  4. Step 4: Simplify right side
    146,241.40x = 19,056,650,791.02
  5. Step 5: Solve for x
    x = 19,056,650,791.02/146,241.40
  6. Step 6: Final answer
    x = 130,309.55

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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.