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Finding the Fourth Proportional to 323,190.08, 485,006.55 and 112,828.01

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Solution

The fourth proportional to 323,190.08, 485,006.55 and 112,828.01 is: 169,319.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,190.08 : 485,006.55 = 112,828.01 : x
  2. Step 2: Convert to fraction form
    323,190.08/485,006.55 = 112,828.01/x
  3. Step 3: Cross multiply
    323,190.08x = 485,006.55 × 112,828.01
  4. Step 4: Simplify right side
    323,190.08x = 54,722,320,884.29
  5. Step 5: Solve for x
    x = 54,722,320,884.29/323,190.08
  6. Step 6: Final answer
    x = 169,319.31

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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.