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Finding the Fourth Proportional to 45,625.86, 68,315.76 and 29,791.68

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Solution

The fourth proportional to 45,625.86, 68,315.76 and 29,791.68 is: 44,607.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,625.86 : 68,315.76 = 29,791.68 : x
  2. Step 2: Convert to fraction form
    45,625.86/68,315.76 = 29,791.68/x
  3. Step 3: Cross multiply
    45,625.86x = 68,315.76 × 29,791.68
  4. Step 4: Simplify right side
    45,625.86x = 2,035,241,260.88
  5. Step 5: Solve for x
    x = 2,035,241,260.88/45,625.86
  6. Step 6: Final answer
    x = 44,607.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.