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Finding the Fourth Proportional to 483,755.40, 725,632.20 and 168,211.80

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Solution

The fourth proportional to 483,755.40, 725,632.20 and 168,211.80 is: 252,317.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,755.40 : 725,632.20 = 168,211.80 : x
  2. Step 2: Convert to fraction form
    483,755.40/725,632.20 = 168,211.80/x
  3. Step 3: Cross multiply
    483,755.40x = 725,632.20 × 168,211.80
  4. Step 4: Simplify right side
    483,755.40x = 122,059,898,499.96
  5. Step 5: Solve for x
    x = 122,059,898,499.96/483,755.40
  6. Step 6: Final answer
    x = 252,317.39

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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.