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Finding the Fourth Proportional to 74,608.38, 102,959.55 and 41,074.38

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Solution

The fourth proportional to 74,608.38, 102,959.55 and 41,074.38 is: 56,682.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,608.38 : 102,959.55 = 41,074.38 : x
  2. Step 2: Convert to fraction form
    74,608.38/102,959.55 = 41,074.38/x
  3. Step 3: Cross multiply
    74,608.38x = 102,959.55 × 41,074.38
  4. Step 4: Simplify right side
    74,608.38x = 4,228,999,681.33
  5. Step 5: Solve for x
    x = 4,228,999,681.33/74,608.38
  6. Step 6: Final answer
    x = 56,682.64

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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.