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Finding the Fourth Proportional to 74,768.77, 103,180.53 and 41,234.77

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Solution

The fourth proportional to 74,768.77, 103,180.53 and 41,234.77 is: 56,903.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,768.77 : 103,180.53 = 41,234.77 : x
  2. Step 2: Convert to fraction form
    74,768.77/103,180.53 = 41,234.77/x
  3. Step 3: Cross multiply
    74,768.77x = 103,180.53 × 41,234.77
  4. Step 4: Simplify right side
    74,768.77x = 4,254,625,423.03
  5. Step 5: Solve for x
    x = 4,254,625,423.03/74,768.77
  6. Step 6: Final answer
    x = 56,903.78

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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.