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Finding the Fourth Proportional to 234,878.64, 352,316.99 and 85,083.85

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Solution

The fourth proportional to 234,878.64, 352,316.99 and 85,083.85 is: 127,625.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,878.64 : 352,316.99 = 85,083.85 : x
  2. Step 2: Convert to fraction form
    234,878.64/352,316.99 = 85,083.85/x
  3. Step 3: Cross multiply
    234,878.64x = 352,316.99 × 85,083.85
  4. Step 4: Simplify right side
    234,878.64x = 29,976,486,582.72
  5. Step 5: Solve for x
    x = 29,976,486,582.72/234,878.64
  6. Step 6: Final answer
    x = 127,625.43

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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.