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Finding the Fourth Proportional to 73,049.29, 100,808.06 and 40,343.76

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Solution

The fourth proportional to 73,049.29, 100,808.06 and 40,343.76 is: 55,674.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,049.29 : 100,808.06 = 40,343.76 : x
  2. Step 2: Convert to fraction form
    73,049.29/100,808.06 = 40,343.76/x
  3. Step 3: Cross multiply
    73,049.29x = 100,808.06 × 40,343.76
  4. Step 4: Simplify right side
    73,049.29x = 4,066,975,976.99
  5. Step 5: Solve for x
    x = 4,066,975,976.99/73,049.29
  6. Step 6: Final answer
    x = 55,674.41

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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.