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Finding the Fourth Proportional to 323,084.97, 484,627.55 and 145,384.38

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Solution

The fourth proportional to 323,084.97, 484,627.55 and 145,384.38 is: 218,076.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,084.97 : 484,627.55 = 145,384.38 : x
  2. Step 2: Convert to fraction form
    323,084.97/484,627.55 = 145,384.38/x
  3. Step 3: Cross multiply
    323,084.97x = 484,627.55 × 145,384.38
  4. Step 4: Simplify right side
    323,084.97x = 70,457,275,160.75
  5. Step 5: Solve for x
    x = 70,457,275,160.75/323,084.97
  6. Step 6: Final answer
    x = 218,076.61

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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.