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Finding the Fourth Proportional to 69,940.97, 105,002.91 and 41,529.80

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Solution

The fourth proportional to 69,940.97, 105,002.91 and 41,529.80 is: 62,349.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,940.97 : 105,002.91 = 41,529.80 : x
  2. Step 2: Convert to fraction form
    69,940.97/105,002.91 = 41,529.80/x
  3. Step 3: Cross multiply
    69,940.97x = 105,002.91 × 41,529.80
  4. Step 4: Simplify right side
    69,940.97x = 4,360,749,851.72
  5. Step 5: Solve for x
    x = 4,360,749,851.72/69,940.97
  6. Step 6: Final answer
    x = 62,349.00

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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.