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Finding the Fourth Proportional to 332,420.64, 498,912.80 and 132,881.92

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Solution

The fourth proportional to 332,420.64, 498,912.80 and 132,881.92 is: 199,435.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,420.64 : 498,912.80 = 132,881.92 : x
  2. Step 2: Convert to fraction form
    332,420.64/498,912.80 = 132,881.92/x
  3. Step 3: Cross multiply
    332,420.64x = 498,912.80 × 132,881.92
  4. Step 4: Simplify right side
    332,420.64x = 66,296,490,776.58
  5. Step 5: Solve for x
    x = 66,296,490,776.58/332,420.64
  6. Step 6: Final answer
    x = 199,435.54

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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.