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Finding the Fourth Proportional to 323,595.51, 485,611.97 and 113,235.27

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Solution

The fourth proportional to 323,595.51, 485,611.97 and 113,235.27 is: 169,929.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,595.51 : 485,611.97 = 113,235.27 : x
  2. Step 2: Convert to fraction form
    323,595.51/485,611.97 = 113,235.27/x
  3. Step 3: Cross multiply
    323,595.51x = 485,611.97 × 113,235.27
  4. Step 4: Simplify right side
    323,595.51x = 54,988,401,972.01
  5. Step 5: Solve for x
    x = 54,988,401,972.01/323,595.51
  6. Step 6: Final answer
    x = 169,929.43

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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.