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Finding the Fourth Proportional to 70,049.78, 104,936.43 and 52,539.38

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Solution

The fourth proportional to 70,049.78, 104,936.43 and 52,539.38 is: 78,705.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,049.78 : 104,936.43 = 52,539.38 : x
  2. Step 2: Convert to fraction form
    70,049.78/104,936.43 = 52,539.38/x
  3. Step 3: Cross multiply
    70,049.78x = 104,936.43 × 52,539.38
  4. Step 4: Simplify right side
    70,049.78x = 5,513,294,971.61
  5. Step 5: Solve for x
    x = 5,513,294,971.61/70,049.78
  6. Step 6: Final answer
    x = 78,705.39

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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.