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Finding the Fourth Proportional to 323,167.28, 484,972.36 and 112,805.20

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Solution

The fourth proportional to 323,167.28, 484,972.36 and 112,805.20 is: 169,285.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,167.28 : 484,972.36 = 112,805.20 : x
  2. Step 2: Convert to fraction form
    323,167.28/484,972.36 = 112,805.20/x
  3. Step 3: Cross multiply
    323,167.28x = 484,972.36 × 112,805.20
  4. Step 4: Simplify right side
    323,167.28x = 54,707,404,064.27
  5. Step 5: Solve for x
    x = 54,707,404,064.27/323,167.28
  6. Step 6: Final answer
    x = 169,285.10

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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.