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Finding the Fourth Proportional to 74,658.28, 103,028.43 and 41,124.28

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Solution

The fourth proportional to 74,658.28, 103,028.43 and 41,124.28 is: 56,751.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,658.28 : 103,028.43 = 41,124.28 : x
  2. Step 2: Convert to fraction form
    74,658.28/103,028.43 = 41,124.28/x
  3. Step 3: Cross multiply
    74,658.28x = 103,028.43 × 41,124.28
  4. Step 4: Simplify right side
    74,658.28x = 4,236,970,003.28
  5. Step 5: Solve for x
    x = 4,236,970,003.28/74,658.28
  6. Step 6: Final answer
    x = 56,751.51

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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.