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Finding the Fourth Proportional to 70,273.05, 105,411.27 and 27,576.65

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Solution

The fourth proportional to 70,273.05, 105,411.27 and 27,576.65 is: 41,365.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,273.05 : 105,411.27 = 27,576.65 : x
  2. Step 2: Convert to fraction form
    70,273.05/105,411.27 = 27,576.65/x
  3. Step 3: Cross multiply
    70,273.05x = 105,411.27 × 27,576.65
  4. Step 4: Simplify right side
    70,273.05x = 2,906,890,065.79
  5. Step 5: Solve for x
    x = 2,906,890,065.79/70,273.05
  6. Step 6: Final answer
    x = 41,365.65

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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.