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Finding the Fourth Proportional to 73,540.99, 110,293.26 and 20,950.93

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Solution

The fourth proportional to 73,540.99, 110,293.26 and 20,950.93 is: 31,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,540.99 : 110,293.26 = 20,950.93 : x
  2. Step 2: Convert to fraction form
    73,540.99/110,293.26 = 20,950.93/x
  3. Step 3: Cross multiply
    73,540.99x = 110,293.26 × 20,950.93
  4. Step 4: Simplify right side
    73,540.99x = 2,310,746,369.73
  5. Step 5: Solve for x
    x = 2,310,746,369.73/73,540.99
  6. Step 6: Final answer
    x = 31,421.20

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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.