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Finding the Fourth Proportional to 353,582.64, 530,375.40 and 143,224.56

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Solution

The fourth proportional to 353,582.64, 530,375.40 and 143,224.56 is: 214,837.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,582.64 : 530,375.40 = 143,224.56 : x
  2. Step 2: Convert to fraction form
    353,582.64/530,375.40 = 143,224.56/x
  3. Step 3: Cross multiply
    353,582.64x = 530,375.40 × 143,224.56
  4. Step 4: Simplify right side
    353,582.64x = 75,962,783,299.82
  5. Step 5: Solve for x
    x = 75,962,783,299.82/353,582.64
  6. Step 6: Final answer
    x = 214,837.42

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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.