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Finding the Fourth Proportional to 73,481.68, 101,374.54 and 47,979.24

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Solution

The fourth proportional to 73,481.68, 101,374.54 and 47,979.24 is: 66,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,481.68 : 101,374.54 = 47,979.24 : x
  2. Step 2: Convert to fraction form
    73,481.68/101,374.54 = 47,979.24/x
  3. Step 3: Cross multiply
    73,481.68x = 101,374.54 × 47,979.24
  4. Step 4: Simplify right side
    73,481.68x = 4,863,873,384.55
  5. Step 5: Solve for x
    x = 4,863,873,384.55/73,481.68
  6. Step 6: Final answer
    x = 66,191.65

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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.