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Finding the Fourth Proportional to 74,578.57, 102,918.39 and 41,044.57

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Solution

The fourth proportional to 74,578.57, 102,918.39 and 41,044.57 is: 56,641.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,578.57 : 102,918.39 = 41,044.57 : x
  2. Step 2: Convert to fraction form
    74,578.57/102,918.39 = 41,044.57/x
  3. Step 3: Cross multiply
    74,578.57x = 102,918.39 × 41,044.57
  4. Step 4: Simplify right side
    74,578.57x = 4,224,241,062.64
  5. Step 5: Solve for x
    x = 4,224,241,062.64/74,578.57
  6. Step 6: Final answer
    x = 56,641.49

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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.