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Finding the Fourth Proportional to 273,310.79, 409,580.73 and 129,062.66

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Solution

The fourth proportional to 273,310.79, 409,580.73 and 129,062.66 is: 193,411.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,310.79 : 409,580.73 = 129,062.66 : x
  2. Step 2: Convert to fraction form
    273,310.79/409,580.73 = 129,062.66/x
  3. Step 3: Cross multiply
    273,310.79x = 409,580.73 × 129,062.66
  4. Step 4: Simplify right side
    273,310.79x = 52,861,576,450.64
  5. Step 5: Solve for x
    x = 52,861,576,450.64/273,310.79
  6. Step 6: Final answer
    x = 193,411.97

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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.