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Finding the Fourth Proportional to 68,661.61, 94,736.69 and 41,803.81

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Solution

The fourth proportional to 68,661.61, 94,736.69 and 41,803.81 is: 57,679.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,661.61 : 94,736.69 = 41,803.81 : x
  2. Step 2: Convert to fraction form
    68,661.61/94,736.69 = 41,803.81/x
  3. Step 3: Cross multiply
    68,661.61x = 94,736.69 × 41,803.81
  4. Step 4: Simplify right side
    68,661.61x = 3,960,354,379.77
  5. Step 5: Solve for x
    x = 3,960,354,379.77/68,661.61
  6. Step 6: Final answer
    x = 57,679.31

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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.