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Finding the Fourth Proportional to 73,958.12, 102,061.94 and 40,424.12

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Solution

The fourth proportional to 73,958.12, 102,061.94 and 40,424.12 is: 55,785.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,958.12 : 102,061.94 = 40,424.12 : x
  2. Step 2: Convert to fraction form
    73,958.12/102,061.94 = 40,424.12/x
  3. Step 3: Cross multiply
    73,958.12x = 102,061.94 × 40,424.12
  4. Step 4: Simplify right side
    73,958.12x = 4,125,764,109.99
  5. Step 5: Solve for x
    x = 4,125,764,109.99/73,958.12
  6. Step 6: Final answer
    x = 55,785.14

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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.