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Finding the Fourth Proportional to 273,872.40, 410,117.40 and 218,576.40

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Solution

The fourth proportional to 273,872.40, 410,117.40 and 218,576.40 is: 327,312.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,872.40 : 410,117.40 = 218,576.40 : x
  2. Step 2: Convert to fraction form
    273,872.40/410,117.40 = 218,576.40/x
  3. Step 3: Cross multiply
    273,872.40x = 410,117.40 × 218,576.40
  4. Step 4: Simplify right side
    273,872.40x = 89,641,984,869.36
  5. Step 5: Solve for x
    x = 89,641,984,869.36/273,872.40
  6. Step 6: Final answer
    x = 327,312.96

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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.