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Finding the Fourth Proportional to 356,396.39, 534,674.38 and 119,732.61

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Solution

The fourth proportional to 356,396.39, 534,674.38 and 119,732.61 is: 179,625.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,396.39 : 534,674.38 = 119,732.61 : x
  2. Step 2: Convert to fraction form
    356,396.39/534,674.38 = 119,732.61/x
  3. Step 3: Cross multiply
    356,396.39x = 534,674.38 × 119,732.61
  4. Step 4: Simplify right side
    356,396.39x = 64,017,960,947.73
  5. Step 5: Solve for x
    x = 64,017,960,947.73/356,396.39
  6. Step 6: Final answer
    x = 179,625.73

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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.