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Finding the Fourth Proportional to 68,490.36, 94,576.82 and 43,040.82

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Solution

The fourth proportional to 68,490.36, 94,576.82 and 43,040.82 is: 59,434.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,490.36 : 94,576.82 = 43,040.82 : x
  2. Step 2: Convert to fraction form
    68,490.36/94,576.82 = 43,040.82/x
  3. Step 3: Cross multiply
    68,490.36x = 94,576.82 × 43,040.82
  4. Step 4: Simplify right side
    68,490.36x = 4,070,663,493.26
  5. Step 5: Solve for x
    x = 4,070,663,493.26/68,490.36
  6. Step 6: Final answer
    x = 59,434.11

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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.