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Finding the Fourth Proportional to 323,264.20, 485,062.44 and 143,472.84

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Solution

The fourth proportional to 323,264.20, 485,062.44 and 143,472.84 is: 215,283.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,264.20 : 485,062.44 = 143,472.84 : x
  2. Step 2: Convert to fraction form
    323,264.20/485,062.44 = 143,472.84/x
  3. Step 3: Cross multiply
    323,264.20x = 485,062.44 × 143,472.84
  4. Step 4: Simplify right side
    323,264.20x = 69,593,285,844.13
  5. Step 5: Solve for x
    x = 69,593,285,844.13/323,264.20
  6. Step 6: Final answer
    x = 215,283.00

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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.