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Finding the Fourth Proportional to 352,611.70, 528,863.55 and 115,954.90

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Solution

The fourth proportional to 352,611.70, 528,863.55 and 115,954.90 is: 173,914.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,611.70 : 528,863.55 = 115,954.90 : x
  2. Step 2: Convert to fraction form
    352,611.70/528,863.55 = 115,954.90/x
  3. Step 3: Cross multiply
    352,611.70x = 528,863.55 × 115,954.90
  4. Step 4: Simplify right side
    352,611.70x = 61,324,320,053.90
  5. Step 5: Solve for x
    x = 61,324,320,053.90/352,611.70
  6. Step 6: Final answer
    x = 173,914.59

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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.