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Finding the Fourth Proportional to 125,160.33, 172,725.66 and 68,571.75

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Solution

The fourth proportional to 125,160.33, 172,725.66 and 68,571.75 is: 94,631.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,160.33 : 172,725.66 = 68,571.75 : x
  2. Step 2: Convert to fraction form
    125,160.33/172,725.66 = 68,571.75/x
  3. Step 3: Cross multiply
    125,160.33x = 172,725.66 × 68,571.75
  4. Step 4: Simplify right side
    125,160.33x = 11,844,099,569.62
  5. Step 5: Solve for x
    x = 11,844,099,569.62/125,160.33
  6. Step 6: Final answer
    x = 94,631.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.