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Finding the Fourth Proportional to 303,158.05, 418,387.68 and 226,544.11

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Solution

The fourth proportional to 303,158.05, 418,387.68 and 226,544.11 is: 312,652.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,158.05 : 418,387.68 = 226,544.11 : x
  2. Step 2: Convert to fraction form
    303,158.05/418,387.68 = 226,544.11/x
  3. Step 3: Cross multiply
    303,158.05x = 418,387.68 × 226,544.11
  4. Step 4: Simplify right side
    303,158.05x = 94,783,264,600.56
  5. Step 5: Solve for x
    x = 94,783,264,600.56/303,158.05
  6. Step 6: Final answer
    x = 312,652.97

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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.