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Finding the Fourth Proportional to 356,113.17, 534,249.78 and 119,449.80

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Solution

The fourth proportional to 356,113.17, 534,249.78 and 119,449.80 is: 179,201.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,113.17 : 534,249.78 = 119,449.80 : x
  2. Step 2: Convert to fraction form
    356,113.17/534,249.78 = 119,449.80/x
  3. Step 3: Cross multiply
    356,113.17x = 534,249.78 × 119,449.80
  4. Step 4: Simplify right side
    356,113.17x = 63,816,029,371.04
  5. Step 5: Solve for x
    x = 63,816,029,371.04/356,113.17
  6. Step 6: Final answer
    x = 179,201.54

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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.