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Finding the Fourth Proportional to 269,780.70, 404,736.21 and 101,302.86

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Solution

The fourth proportional to 269,780.70, 404,736.21 and 101,302.86 is: 151,978.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,780.70 : 404,736.21 = 101,302.86 : x
  2. Step 2: Convert to fraction form
    269,780.70/404,736.21 = 101,302.86/x
  3. Step 3: Cross multiply
    269,780.70x = 404,736.21 × 101,302.86
  4. Step 4: Simplify right side
    269,780.70x = 41,000,935,618.56
  5. Step 5: Solve for x
    x = 41,000,935,618.56/269,780.70
  6. Step 6: Final answer
    x = 151,978.76

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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.