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Finding the Fourth Proportional to 60,315.42, 90,473.13 and 41,321.33

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Solution

The fourth proportional to 60,315.42, 90,473.13 and 41,321.33 is: 61,981.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,315.42 : 90,473.13 = 41,321.33 : x
  2. Step 2: Convert to fraction form
    60,315.42/90,473.13 = 41,321.33/x
  3. Step 3: Cross multiply
    60,315.42x = 90,473.13 × 41,321.33
  4. Step 4: Simplify right side
    60,315.42x = 3,738,469,608.50
  5. Step 5: Solve for x
    x = 3,738,469,608.50/60,315.42
  6. Step 6: Final answer
    x = 61,981.99

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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.