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Finding the Fourth Proportional to 71,678.01, 98,927.88 and 41,481.72

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Solution

The fourth proportional to 71,678.01, 98,927.88 and 41,481.72 is: 57,251.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,678.01 : 98,927.88 = 41,481.72 : x
  2. Step 2: Convert to fraction form
    71,678.01/98,927.88 = 41,481.72/x
  3. Step 3: Cross multiply
    71,678.01x = 98,927.88 × 41,481.72
  4. Step 4: Simplify right side
    71,678.01x = 4,103,698,696.13
  5. Step 5: Solve for x
    x = 4,103,698,696.13/71,678.01
  6. Step 6: Final answer
    x = 57,251.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.