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Finding the Fourth Proportional to 443,394.54, 665,190.18 and 127,826.82

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Solution

The fourth proportional to 443,394.54, 665,190.18 and 127,826.82 is: 191,768.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,394.54 : 665,190.18 = 127,826.82 : x
  2. Step 2: Convert to fraction form
    443,394.54/665,190.18 = 127,826.82/x
  3. Step 3: Cross multiply
    443,394.54x = 665,190.18 × 127,826.82
  4. Step 4: Simplify right side
    443,394.54x = 85,029,145,404.63
  5. Step 5: Solve for x
    x = 85,029,145,404.63/443,394.54
  6. Step 6: Final answer
    x = 191,768.59

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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.