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Finding the Fourth Proportional to 363,285.05, 544,930.31 and 126,627.95

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Solution

The fourth proportional to 363,285.05, 544,930.31 and 126,627.95 is: 189,942.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,285.05 : 544,930.31 = 126,627.95 : x
  2. Step 2: Convert to fraction form
    363,285.05/544,930.31 = 126,627.95/x
  3. Step 3: Cross multiply
    363,285.05x = 544,930.31 × 126,627.95
  4. Step 4: Simplify right side
    363,285.05x = 69,003,409,727.06
  5. Step 5: Solve for x
    x = 69,003,409,727.06/363,285.05
  6. Step 6: Final answer
    x = 189,942.89

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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.