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Finding the Fourth Proportional to 71,273.22, 106,878.24 and 37,987.08

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Solution

The fourth proportional to 71,273.22, 106,878.24 and 37,987.08 is: 56,963.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,273.22 : 106,878.24 = 37,987.08 : x
  2. Step 2: Convert to fraction form
    71,273.22/106,878.24 = 37,987.08/x
  3. Step 3: Cross multiply
    71,273.22x = 106,878.24 × 37,987.08
  4. Step 4: Simplify right side
    71,273.22x = 4,059,992,253.14
  5. Step 5: Solve for x
    x = 4,059,992,253.14/71,273.22
  6. Step 6: Final answer
    x = 56,963.78

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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.