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Finding the Fourth Proportional to 281,664.60, 422,496.90 and 141,372.60

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Solution

The fourth proportional to 281,664.60, 422,496.90 and 141,372.60 is: 212,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,664.60 : 422,496.90 = 141,372.60 : x
  2. Step 2: Convert to fraction form
    281,664.60/422,496.90 = 141,372.60/x
  3. Step 3: Cross multiply
    281,664.60x = 422,496.90 × 141,372.60
  4. Step 4: Simplify right side
    281,664.60x = 59,729,485,244.94
  5. Step 5: Solve for x
    x = 59,729,485,244.94/281,664.60
  6. Step 6: Final answer
    x = 212,058.90

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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.