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Finding the Fourth Proportional to 323,875, 485,874.77 and 124,179.81

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Solution

The fourth proportional to 323,875, 485,874.77 and 124,179.81 is: 186,293.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,875 : 485,874.77 = 124,179.81 : x
  2. Step 2: Convert to fraction form
    323,875/485,874.77 = 124,179.81/x
  3. Step 3: Cross multiply
    323,875x = 485,874.77 × 124,179.81
  4. Step 4: Simplify right side
    323,875x = 60,335,836,622.39
  5. Step 5: Solve for x
    x = 60,335,836,622.39/323,875
  6. Step 6: Final answer
    x = 186,293.59

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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.