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Finding the Fourth Proportional to 306,188.38, 458,299.88 and 163,677.28

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Solution

The fourth proportional to 306,188.38, 458,299.88 and 163,677.28 is: 244,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,188.38 : 458,299.88 = 163,677.28 : x
  2. Step 2: Convert to fraction form
    306,188.38/458,299.88 = 163,677.28/x
  3. Step 3: Cross multiply
    306,188.38x = 458,299.88 × 163,677.28
  4. Step 4: Simplify right side
    306,188.38x = 75,013,277,782.73
  5. Step 5: Solve for x
    x = 75,013,277,782.73/306,188.38
  6. Step 6: Final answer
    x = 244,990.61

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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.