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Finding the Fourth Proportional to 125,081, 172,611.78 and 68,494.44

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Solution

The fourth proportional to 125,081, 172,611.78 and 68,494.44 is: 94,522.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,081 : 172,611.78 = 68,494.44 : x
  2. Step 2: Convert to fraction form
    125,081/172,611.78 = 68,494.44/x
  3. Step 3: Cross multiply
    125,081x = 172,611.78 × 68,494.44
  4. Step 4: Simplify right side
    125,081x = 11,822,947,208.50
  5. Step 5: Solve for x
    x = 11,822,947,208.50/125,081
  6. Step 6: Final answer
    x = 94,522.33

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