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Finding the Fourth Proportional to 322,472.01, 483,766.20 and 132,828.87

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Solution

The fourth proportional to 322,472.01, 483,766.20 and 132,828.87 is: 199,267.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,472.01 : 483,766.20 = 132,828.87 : x
  2. Step 2: Convert to fraction form
    322,472.01/483,766.20 = 132,828.87/x
  3. Step 3: Cross multiply
    322,472.01x = 483,766.20 × 132,828.87
  4. Step 4: Simplify right side
    322,472.01x = 64,258,115,271.36
  5. Step 5: Solve for x
    x = 64,258,115,271.36/322,472.01
  6. Step 6: Final answer
    x = 199,267.27

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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.