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Finding the Fourth Proportional to 322,512.40, 483,912.60 and 112,301.20

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Solution

The fourth proportional to 322,512.40, 483,912.60 and 112,301.20 is: 168,501.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,512.40 : 483,912.60 = 112,301.20 : x
  2. Step 2: Convert to fraction form
    322,512.40/483,912.60 = 112,301.20/x
  3. Step 3: Cross multiply
    322,512.40x = 483,912.60 × 112,301.20
  4. Step 4: Simplify right side
    322,512.40x = 54,343,965,675.12
  5. Step 5: Solve for x
    x = 54,343,965,675.12/322,512.40
  6. Step 6: Final answer
    x = 168,501.94

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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.