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Finding the Fourth Proportional to 71,251.73, 106,877.51 and 28,576.41

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Solution

The fourth proportional to 71,251.73, 106,877.51 and 28,576.41 is: 42,864.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,251.73 : 106,877.51 = 28,576.41 : x
  2. Step 2: Convert to fraction form
    71,251.73/106,877.51 = 28,576.41/x
  3. Step 3: Cross multiply
    71,251.73x = 106,877.51 × 28,576.41
  4. Step 4: Simplify right side
    71,251.73x = 3,054,175,402.66
  5. Step 5: Solve for x
    x = 3,054,175,402.66/71,251.73
  6. Step 6: Final answer
    x = 42,864.58

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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.