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Finding the Fourth Proportional to 354,481.88, 531,722.82 and 144,070.52

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Solution

The fourth proportional to 354,481.88, 531,722.82 and 144,070.52 is: 216,105.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,481.88 : 531,722.82 = 144,070.52 : x
  2. Step 2: Convert to fraction form
    354,481.88/531,722.82 = 144,070.52/x
  3. Step 3: Cross multiply
    354,481.88x = 531,722.82 × 144,070.52
  4. Step 4: Simplify right side
    354,481.88x = 76,605,583,173.27
  5. Step 5: Solve for x
    x = 76,605,583,173.27/354,481.88
  6. Step 6: Final answer
    x = 216,105.78

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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.