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Finding the Fourth Proportional to 379,484.57, 569,229.30 and 151,799.21

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Solution

The fourth proportional to 379,484.57, 569,229.30 and 151,799.21 is: 227,699.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,484.57 : 569,229.30 = 151,799.21 : x
  2. Step 2: Convert to fraction form
    379,484.57/569,229.30 = 151,799.21/x
  3. Step 3: Cross multiply
    379,484.57x = 569,229.30 × 151,799.21
  4. Step 4: Simplify right side
    379,484.57x = 86,408,558,048.85
  5. Step 5: Solve for x
    x = 86,408,558,048.85/379,484.57
  6. Step 6: Final answer
    x = 227,699.79

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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.