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Finding the Fourth Proportional to 71,273.97, 106,879.37 and 37,987.83

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Solution

The fourth proportional to 71,273.97, 106,879.37 and 37,987.83 is: 56,964.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,273.97 : 106,879.37 = 37,987.83 : x
  2. Step 2: Convert to fraction form
    71,273.97/106,879.37 = 37,987.83/x
  3. Step 3: Cross multiply
    71,273.97x = 106,879.37 × 37,987.83
  4. Step 4: Simplify right side
    71,273.97x = 4,060,115,148.13
  5. Step 5: Solve for x
    x = 4,060,115,148.13/71,273.97
  6. Step 6: Final answer
    x = 56,964.91

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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.