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Finding the Fourth Proportional to 68,249.88, 102,736.89 and 48,663.96

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Solution

The fourth proportional to 68,249.88, 102,736.89 and 48,663.96 is: 73,254.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,249.88 : 102,736.89 = 48,663.96 : x
  2. Step 2: Convert to fraction form
    68,249.88/102,736.89 = 48,663.96/x
  3. Step 3: Cross multiply
    68,249.88x = 102,736.89 × 48,663.96
  4. Step 4: Simplify right side
    68,249.88x = 4,999,583,905.48
  5. Step 5: Solve for x
    x = 4,999,583,905.48/68,249.88
  6. Step 6: Final answer
    x = 73,254.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.