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Finding the Fourth Proportional to 74,735.61, 103,134.47 and 41,201.61

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Solution

The fourth proportional to 74,735.61, 103,134.47 and 41,201.61 is: 56,857.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,735.61 : 103,134.47 = 41,201.61 : x
  2. Step 2: Convert to fraction form
    74,735.61/103,134.47 = 41,201.61/x
  3. Step 3: Cross multiply
    74,735.61x = 103,134.47 × 41,201.61
  4. Step 4: Simplify right side
    74,735.61x = 4,249,306,004.49
  5. Step 5: Solve for x
    x = 4,249,306,004.49/74,735.61
  6. Step 6: Final answer
    x = 56,857.85

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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.