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Finding the Fourth Proportional to 68,409.78, 102,630.06 and 24,039.60

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Solution

The fourth proportional to 68,409.78, 102,630.06 and 24,039.60 is: 36,064.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,409.78 : 102,630.06 = 24,039.60 : x
  2. Step 2: Convert to fraction form
    68,409.78/102,630.06 = 24,039.60/x
  3. Step 3: Cross multiply
    68,409.78x = 102,630.06 × 24,039.60
  4. Step 4: Simplify right side
    68,409.78x = 2,467,185,590.38
  5. Step 5: Solve for x
    x = 2,467,185,590.38/68,409.78
  6. Step 6: Final answer
    x = 36,064.81

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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.