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Finding the Fourth Proportional to 73,672.11, 101,679.70 and 43,464.81

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Solution

The fourth proportional to 73,672.11, 101,679.70 and 43,464.81 is: 59,988.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,672.11 : 101,679.70 = 43,464.81 : x
  2. Step 2: Convert to fraction form
    73,672.11/101,679.70 = 43,464.81/x
  3. Step 3: Cross multiply
    73,672.11x = 101,679.70 × 43,464.81
  4. Step 4: Simplify right side
    73,672.11x = 4,419,488,841.36
  5. Step 5: Solve for x
    x = 4,419,488,841.36/73,672.11
  6. Step 6: Final answer
    x = 59,988.63

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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.