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Finding the Fourth Proportional to 239,672.40, 359,638.20 and 106,573.20

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Solution

The fourth proportional to 239,672.40, 359,638.20 and 106,573.20 is: 159,917.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,672.40 : 359,638.20 = 106,573.20 : x
  2. Step 2: Convert to fraction form
    239,672.40/359,638.20 = 106,573.20/x
  3. Step 3: Cross multiply
    239,672.40x = 359,638.20 × 106,573.20
  4. Step 4: Simplify right side
    239,672.40x = 38,327,793,816.24
  5. Step 5: Solve for x
    x = 38,327,793,816.24/239,672.40
  6. Step 6: Final answer
    x = 159,917.43

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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.