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Finding the Fourth Proportional to 203,279.55, 304,891.64 and 53,507.29

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Solution

The fourth proportional to 203,279.55, 304,891.64 and 53,507.29 is: 80,253.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,279.55 : 304,891.64 = 53,507.29 : x
  2. Step 2: Convert to fraction form
    203,279.55/304,891.64 = 53,507.29/x
  3. Step 3: Cross multiply
    203,279.55x = 304,891.64 × 53,507.29
  4. Step 4: Simplify right side
    203,279.55x = 16,313,926,285.96
  5. Step 5: Solve for x
    x = 16,313,926,285.96/203,279.55
  6. Step 6: Final answer
    x = 80,253.65

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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.