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Finding the Fourth Proportional to 356,286.52, 534,457.86 and 119,628.28

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Solution

The fourth proportional to 356,286.52, 534,457.86 and 119,628.28 is: 179,451.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,286.52 : 534,457.86 = 119,628.28 : x
  2. Step 2: Convert to fraction form
    356,286.52/534,457.86 = 119,628.28/x
  3. Step 3: Cross multiply
    356,286.52x = 534,457.86 × 119,628.28
  4. Step 4: Simplify right side
    356,286.52x = 63,936,274,524.28
  5. Step 5: Solve for x
    x = 63,936,274,524.28/356,286.52
  6. Step 6: Final answer
    x = 179,451.85

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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.