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Finding the Fourth Proportional to 356,449.08, 534,673.62 and 119,791.76

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Solution

The fourth proportional to 356,449.08, 534,673.62 and 119,791.76 is: 179,687.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,449.08 : 534,673.62 = 119,791.76 : x
  2. Step 2: Convert to fraction form
    356,449.08/534,673.62 = 119,791.76/x
  3. Step 3: Cross multiply
    356,449.08x = 534,673.62 × 119,791.76
  4. Step 4: Simplify right side
    356,449.08x = 64,049,491,292.00
  5. Step 5: Solve for x
    x = 64,049,491,292.00/356,449.08
  6. Step 6: Final answer
    x = 179,687.63

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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.