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Finding the Fourth Proportional to 234,213.73, 351,210.84 and 84,434.20

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Solution

The fourth proportional to 234,213.73, 351,210.84 and 84,434.20 is: 126,611.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,213.73 : 351,210.84 = 84,434.20 : x
  2. Step 2: Convert to fraction form
    234,213.73/351,210.84 = 84,434.20/x
  3. Step 3: Cross multiply
    234,213.73x = 351,210.84 × 84,434.20
  4. Step 4: Simplify right side
    234,213.73x = 29,654,205,112.07
  5. Step 5: Solve for x
    x = 29,654,205,112.07/234,213.73
  6. Step 6: Final answer
    x = 126,611.73

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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.