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Finding the Fourth Proportional to 44,234.40, 66,481.20 and 43,456.80

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Solution

The fourth proportional to 44,234.40, 66,481.20 and 43,456.80 is: 65,312.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,234.40 : 66,481.20 = 43,456.80 : x
  2. Step 2: Convert to fraction form
    44,234.40/66,481.20 = 43,456.80/x
  3. Step 3: Cross multiply
    44,234.40x = 66,481.20 × 43,456.80
  4. Step 4: Simplify right side
    44,234.40x = 2,889,060,212.16
  5. Step 5: Solve for x
    x = 2,889,060,212.16/44,234.40
  6. Step 6: Final answer
    x = 65,312.52

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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.