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Finding the Fourth Proportional to 234,310.51, 351,393.12 and 84,531.34

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Solution

The fourth proportional to 234,310.51, 351,393.12 and 84,531.34 is: 126,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,310.51 : 351,393.12 = 84,531.34 : x
  2. Step 2: Convert to fraction form
    234,310.51/351,393.12 = 84,531.34/x
  3. Step 3: Cross multiply
    234,310.51x = 351,393.12 × 84,531.34
  4. Step 4: Simplify right side
    234,310.51x = 29,703,730,421.90
  5. Step 5: Solve for x
    x = 29,703,730,421.90/234,310.51
  6. Step 6: Final answer
    x = 126,770.80

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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.