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Finding the Fourth Proportional to 71,236.11, 98,316 and 41,018.43

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Solution

The fourth proportional to 71,236.11, 98,316 and 41,018.43 is: 56,611.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,236.11 : 98,316 = 41,018.43 : x
  2. Step 2: Convert to fraction form
    71,236.11/98,316 = 41,018.43/x
  3. Step 3: Cross multiply
    71,236.11x = 98,316 × 41,018.43
  4. Step 4: Simplify right side
    71,236.11x = 4,032,767,963.88
  5. Step 5: Solve for x
    x = 4,032,767,963.88/71,236.11
  6. Step 6: Final answer
    x = 56,611.29

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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.