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Finding the Fourth Proportional to 270,826.79, 406,108.96 and 135,832.86

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Solution

The fourth proportional to 270,826.79, 406,108.96 and 135,832.86 is: 203,683.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,826.79 : 406,108.96 = 135,832.86 : x
  2. Step 2: Convert to fraction form
    270,826.79/406,108.96 = 135,832.86/x
  3. Step 3: Cross multiply
    270,826.79x = 406,108.96 × 135,832.86
  4. Step 4: Simplify right side
    270,826.79x = 55,162,941,508.43
  5. Step 5: Solve for x
    x = 55,162,941,508.43/270,826.79
  6. Step 6: Final answer
    x = 203,683.47

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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.