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Finding the Fourth Proportional to 219,793.06, 329,690.40 and 53,581.06

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Solution

The fourth proportional to 219,793.06, 329,690.40 and 53,581.06 is: 80,371.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,793.06 : 329,690.40 = 53,581.06 : x
  2. Step 2: Convert to fraction form
    219,793.06/329,690.40 = 53,581.06/x
  3. Step 3: Cross multiply
    219,793.06x = 329,690.40 × 53,581.06
  4. Step 4: Simplify right side
    219,793.06x = 17,665,161,103.82
  5. Step 5: Solve for x
    x = 17,665,161,103.82/219,793.06
  6. Step 6: Final answer
    x = 80,371.79

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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.