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Finding the Fourth Proportional to 74,573, 102,910.76 and 41,039

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Solution

The fourth proportional to 74,573, 102,910.76 and 41,039 is: 56,633.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,573 : 102,910.76 = 41,039 : x
  2. Step 2: Convert to fraction form
    74,573/102,910.76 = 41,039/x
  3. Step 3: Cross multiply
    74,573x = 102,910.76 × 41,039
  4. Step 4: Simplify right side
    74,573x = 4,223,354,679.64
  5. Step 5: Solve for x
    x = 4,223,354,679.64/74,573
  6. Step 6: Final answer
    x = 56,633.83

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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.