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Finding the Fourth Proportional to 73,221.01, 101,043.79 and 40,956.39

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Solution

The fourth proportional to 73,221.01, 101,043.79 and 40,956.39 is: 56,519.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,221.01 : 101,043.79 = 40,956.39 : x
  2. Step 2: Convert to fraction form
    73,221.01/101,043.79 = 40,956.39/x
  3. Step 3: Cross multiply
    73,221.01x = 101,043.79 × 40,956.39
  4. Step 4: Simplify right side
    73,221.01x = 4,138,388,767.93
  5. Step 5: Solve for x
    x = 4,138,388,767.93/73,221.01
  6. Step 6: Final answer
    x = 56,519.15

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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.