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Finding the Fourth Proportional to 73,049.79, 100,811.70 and 41,218.53

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Solution

The fourth proportional to 73,049.79, 100,811.70 and 41,218.53 is: 56,883.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,049.79 : 100,811.70 = 41,218.53 : x
  2. Step 2: Convert to fraction form
    73,049.79/100,811.70 = 41,218.53/x
  3. Step 3: Cross multiply
    73,049.79x = 100,811.70 × 41,218.53
  4. Step 4: Simplify right side
    73,049.79x = 4,155,310,080.80
  5. Step 5: Solve for x
    x = 4,155,310,080.80/73,049.79
  6. Step 6: Final answer
    x = 56,883.26

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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.