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Finding the Fourth Proportional to 323,167.78, 484,751.94 and 154,648.54

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Solution

The fourth proportional to 323,167.78, 484,751.94 and 154,648.54 is: 231,972.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,167.78 : 484,751.94 = 154,648.54 : x
  2. Step 2: Convert to fraction form
    323,167.78/484,751.94 = 154,648.54/x
  3. Step 3: Cross multiply
    323,167.78x = 484,751.94 × 154,648.54
  4. Step 4: Simplify right side
    323,167.78x = 74,966,179,783.17
  5. Step 5: Solve for x
    x = 74,966,179,783.17/323,167.78
  6. Step 6: Final answer
    x = 231,972.94

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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.