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Finding the Fourth Proportional to 55,571.74, 76,695.87 and 41,399.98

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Solution

The fourth proportional to 55,571.74, 76,695.87 and 41,399.98 is: 57,137.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,571.74 : 76,695.87 = 41,399.98 : x
  2. Step 2: Convert to fraction form
    55,571.74/76,695.87 = 41,399.98/x
  3. Step 3: Cross multiply
    55,571.74x = 76,695.87 × 41,399.98
  4. Step 4: Simplify right side
    55,571.74x = 3,175,207,484.08
  5. Step 5: Solve for x
    x = 3,175,207,484.08/55,571.74
  6. Step 6: Final answer
    x = 57,137.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.