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Finding the Fourth Proportional to 74,638.47, 102,996.41 and 41,104.47

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Solution

The fourth proportional to 74,638.47, 102,996.41 and 41,104.47 is: 56,721.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,638.47 : 102,996.41 = 41,104.47 : x
  2. Step 2: Convert to fraction form
    74,638.47/102,996.41 = 41,104.47/x
  3. Step 3: Cross multiply
    74,638.47x = 102,996.41 × 41,104.47
  4. Step 4: Simplify right side
    74,638.47x = 4,233,612,329.97
  5. Step 5: Solve for x
    x = 4,233,612,329.97/74,638.47
  6. Step 6: Final answer
    x = 56,721.59

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1.5x scale

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.