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Finding the Fourth Proportional to 124,590.44, 171,936.60 and 68,000.60

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Solution

The fourth proportional to 124,590.44, 171,936.60 and 68,000.60 is: 93,841.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,590.44 : 171,936.60 = 68,000.60 : x
  2. Step 2: Convert to fraction form
    124,590.44/171,936.60 = 68,000.60/x
  3. Step 3: Cross multiply
    124,590.44x = 171,936.60 × 68,000.60
  4. Step 4: Simplify right side
    124,590.44x = 11,691,791,961.96
  5. Step 5: Solve for x
    x = 11,691,791,961.96/124,590.44
  6. Step 6: Final answer
    x = 93,841.81

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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.