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Finding the Fourth Proportional to 323,313.97, 484,971.86 and 112,951.90

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Solution

The fourth proportional to 323,313.97, 484,971.86 and 112,951.90 is: 169,428.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,313.97 : 484,971.86 = 112,951.90 : x
  2. Step 2: Convert to fraction form
    323,313.97/484,971.86 = 112,951.90/x
  3. Step 3: Cross multiply
    323,313.97x = 484,971.86 × 112,951.90
  4. Step 4: Simplify right side
    323,313.97x = 54,778,493,033.53
  5. Step 5: Solve for x
    x = 54,778,493,033.53/323,313.97
  6. Step 6: Final answer
    x = 169,428.17

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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.