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Finding the Fourth Proportional to 68,406.60, 102,524.24 and 36,738.84

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Solution

The fourth proportional to 68,406.60, 102,524.24 and 36,738.84 is: 55,062.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,406.60 : 102,524.24 = 36,738.84 : x
  2. Step 2: Convert to fraction form
    68,406.60/102,524.24 = 36,738.84/x
  3. Step 3: Cross multiply
    68,406.60x = 102,524.24 × 36,738.84
  4. Step 4: Simplify right side
    68,406.60x = 3,766,621,649.48
  5. Step 5: Solve for x
    x = 3,766,621,649.48/68,406.60
  6. Step 6: Final answer
    x = 55,062.25

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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.