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Finding the Fourth Proportional to 74,638.62, 102,996.60 and 41,104.62

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Solution

The fourth proportional to 74,638.62, 102,996.60 and 41,104.62 is: 56,721.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,638.62 : 102,996.60 = 41,104.62 : x
  2. Step 2: Convert to fraction form
    74,638.62/102,996.60 = 41,104.62/x
  3. Step 3: Cross multiply
    74,638.62x = 102,996.60 × 41,104.62
  4. Step 4: Simplify right side
    74,638.62x = 4,233,636,104.29
  5. Step 5: Solve for x
    x = 4,233,636,104.29/74,638.62
  6. Step 6: Final answer
    x = 56,721.79

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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.