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Finding the Fourth Proportional to 250,699.12, 376,049.96 and 84,488.56

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Solution

The fourth proportional to 250,699.12, 376,049.96 and 84,488.56 is: 126,733.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,699.12 : 376,049.96 = 84,488.56 : x
  2. Step 2: Convert to fraction form
    250,699.12/376,049.96 = 84,488.56/x
  3. Step 3: Cross multiply
    250,699.12x = 376,049.96 × 84,488.56
  4. Step 4: Simplify right side
    250,699.12x = 31,771,919,608.46
  5. Step 5: Solve for x
    x = 31,771,919,608.46/250,699.12
  6. Step 6: Final answer
    x = 126,733.27

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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.