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Finding the Fourth Proportional to 70,651.74, 106,067.53 and 45,795.80

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Solution

The fourth proportional to 70,651.74, 106,067.53 and 45,795.80 is: 68,751.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,651.74 : 106,067.53 = 45,795.80 : x
  2. Step 2: Convert to fraction form
    70,651.74/106,067.53 = 45,795.80/x
  3. Step 3: Cross multiply
    70,651.74x = 106,067.53 × 45,795.80
  4. Step 4: Simplify right side
    70,651.74x = 4,857,446,860.04
  5. Step 5: Solve for x
    x = 4,857,446,860.04/70,651.74
  6. Step 6: Final answer
    x = 68,751.98

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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.