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Finding the Fourth Proportional to 332,585.40, 498,942.90 and 132,871.80

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Solution

The fourth proportional to 332,585.40, 498,942.90 and 132,871.80 is: 199,333.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,585.40 : 498,942.90 = 132,871.80 : x
  2. Step 2: Convert to fraction form
    332,585.40/498,942.90 = 132,871.80/x
  3. Step 3: Cross multiply
    332,585.40x = 498,942.90 × 132,871.80
  4. Step 4: Simplify right side
    332,585.40x = 66,295,441,220.22
  5. Step 5: Solve for x
    x = 66,295,441,220.22/332,585.40
  6. Step 6: Final answer
    x = 199,333.59

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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.