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Finding the Fourth Proportional to 363,134.80, 501,140.28 and 219,813.76

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Solution

The fourth proportional to 363,134.80, 501,140.28 and 219,813.76 is: 303,351.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,134.80 : 501,140.28 = 219,813.76 : x
  2. Step 2: Convert to fraction form
    363,134.80/501,140.28 = 219,813.76/x
  3. Step 3: Cross multiply
    363,134.80x = 501,140.28 × 219,813.76
  4. Step 4: Simplify right side
    363,134.80x = 110,157,529,234.25
  5. Step 5: Solve for x
    x = 110,157,529,234.25/363,134.80
  6. Step 6: Final answer
    x = 303,351.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.