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Finding the Fourth Proportional to 276,069.68, 414,201.72 and 135,926.72

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Solution

The fourth proportional to 276,069.68, 414,201.72 and 135,926.72 is: 203,937.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,069.68 : 414,201.72 = 135,926.72 : x
  2. Step 2: Convert to fraction form
    276,069.68/414,201.72 = 135,926.72/x
  3. Step 3: Cross multiply
    276,069.68x = 414,201.72 × 135,926.72
  4. Step 4: Simplify right side
    276,069.68x = 56,301,081,217.96
  5. Step 5: Solve for x
    x = 56,301,081,217.96/276,069.68
  6. Step 6: Final answer
    x = 203,937.94

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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.