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Finding the Fourth Proportional to 323,501.28, 485,297.28 and 113,091.36

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Solution

The fourth proportional to 323,501.28, 485,297.28 and 113,091.36 is: 169,652.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,501.28 : 485,297.28 = 113,091.36 : x
  2. Step 2: Convert to fraction form
    323,501.28/485,297.28 = 113,091.36/x
  3. Step 3: Cross multiply
    323,501.28x = 485,297.28 × 113,091.36
  4. Step 4: Simplify right side
    323,501.28x = 54,882,929,399.50
  5. Step 5: Solve for x
    x = 54,882,929,399.50/323,501.28
  6. Step 6: Final answer
    x = 169,652.90

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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.