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Finding the Fourth Proportional to 332,604.40, 498,971.40 and 132,890.80

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Solution

The fourth proportional to 332,604.40, 498,971.40 and 132,890.80 is: 199,362.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,604.40 : 498,971.40 = 132,890.80 : x
  2. Step 2: Convert to fraction form
    332,604.40/498,971.40 = 132,890.80/x
  3. Step 3: Cross multiply
    332,604.40x = 498,971.40 × 132,890.80
  4. Step 4: Simplify right side
    332,604.40x = 66,308,708,523.12
  5. Step 5: Solve for x
    x = 66,308,708,523.12/332,604.40
  6. Step 6: Final answer
    x = 199,362.09

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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.