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Finding the Fourth Proportional to 227,672.40, 341,551.44 and 87,420.24

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Solution

The fourth proportional to 227,672.40, 341,551.44 and 87,420.24 is: 131,146.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,672.40 : 341,551.44 = 87,420.24 : x
  2. Step 2: Convert to fraction form
    227,672.40/341,551.44 = 87,420.24/x
  3. Step 3: Cross multiply
    227,672.40x = 341,551.44 × 87,420.24
  4. Step 4: Simplify right side
    227,672.40x = 29,858,508,857.15
  5. Step 5: Solve for x
    x = 29,858,508,857.15/227,672.40
  6. Step 6: Final answer
    x = 131,146.81

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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.