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Finding the Fourth Proportional to 226,693.81, 339,967.23 and 74,856.79

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Solution

The fourth proportional to 226,693.81, 339,967.23 and 74,856.79 is: 112,260.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,693.81 : 339,967.23 = 74,856.79 : x
  2. Step 2: Convert to fraction form
    226,693.81/339,967.23 = 74,856.79/x
  3. Step 3: Cross multiply
    226,693.81x = 339,967.23 × 74,856.79
  4. Step 4: Simplify right side
    226,693.81x = 25,448,855,542.99
  5. Step 5: Solve for x
    x = 25,448,855,542.99/226,693.81
  6. Step 6: Final answer
    x = 112,260.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.