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Finding the Fourth Proportional to 333,331.38, 500,049 and 108,639.68

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Solution

The fourth proportional to 333,331.38, 500,049 and 108,639.68 is: 162,976.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,331.38 : 500,049 = 108,639.68 : x
  2. Step 2: Convert to fraction form
    333,331.38/500,049 = 108,639.68/x
  3. Step 3: Cross multiply
    333,331.38x = 500,049 × 108,639.68
  4. Step 4: Simplify right side
    333,331.38x = 54,325,163,344.32
  5. Step 5: Solve for x
    x = 54,325,163,344.32/333,331.38
  6. Step 6: Final answer
    x = 162,976.45

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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.