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Finding the Fourth Proportional to 162,871.20, 244,306.80 and 136,627.20

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Solution

The fourth proportional to 162,871.20, 244,306.80 and 136,627.20 is: 204,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,871.20 : 244,306.80 = 136,627.20 : x
  2. Step 2: Convert to fraction form
    162,871.20/244,306.80 = 136,627.20/x
  3. Step 3: Cross multiply
    162,871.20x = 244,306.80 × 136,627.20
  4. Step 4: Simplify right side
    162,871.20x = 33,378,954,024.96
  5. Step 5: Solve for x
    x = 33,378,954,024.96/162,871.20
  6. Step 6: Final answer
    x = 204,940.80

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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.