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Finding the Fourth Proportional to 73,447.65, 110,000.61 and 71,427.33

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Solution

The fourth proportional to 73,447.65, 110,000.61 and 71,427.33 is: 106,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,447.65 : 110,000.61 = 71,427.33 : x
  2. Step 2: Convert to fraction form
    73,447.65/110,000.61 = 71,427.33/x
  3. Step 3: Cross multiply
    73,447.65x = 110,000.61 × 71,427.33
  4. Step 4: Simplify right side
    73,447.65x = 7,857,049,870.67
  5. Step 5: Solve for x
    x = 7,857,049,870.67/73,447.65
  6. Step 6: Final answer
    x = 106,974.83

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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.