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Finding the Fourth Proportional to 443,394.52, 665,190.20 and 127,826.80

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Solution

The fourth proportional to 443,394.52, 665,190.20 and 127,826.80 is: 191,768.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,394.52 : 665,190.20 = 127,826.80 : x
  2. Step 2: Convert to fraction form
    443,394.52/665,190.20 = 127,826.80/x
  3. Step 3: Cross multiply
    443,394.52x = 665,190.20 × 127,826.80
  4. Step 4: Simplify right side
    443,394.52x = 85,029,134,657.36
  5. Step 5: Solve for x
    x = 85,029,134,657.36/443,394.52
  6. Step 6: Final answer
    x = 191,768.57

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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.