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Finding the Fourth Proportional to 234,018.20, 351,092.10 and 155,286.20

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Solution

The fourth proportional to 234,018.20, 351,092.10 and 155,286.20 is: 232,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,018.20 : 351,092.10 = 155,286.20 : x
  2. Step 2: Convert to fraction form
    234,018.20/351,092.10 = 155,286.20/x
  3. Step 3: Cross multiply
    234,018.20x = 351,092.10 × 155,286.20
  4. Step 4: Simplify right side
    234,018.20x = 54,519,758,059.02
  5. Step 5: Solve for x
    x = 54,519,758,059.02/234,018.20
  6. Step 6: Final answer
    x = 232,972.30

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1.5x scale

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.