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Finding the Fourth Proportional to 52,600.86, 78,754.89 and 40,936.86

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Solution

The fourth proportional to 52,600.86, 78,754.89 and 40,936.86 is: 61,291.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,600.86 : 78,754.89 = 40,936.86 : x
  2. Step 2: Convert to fraction form
    52,600.86/78,754.89 = 40,936.86/x
  3. Step 3: Cross multiply
    52,600.86x = 78,754.89 × 40,936.86
  4. Step 4: Simplify right side
    52,600.86x = 3,223,977,906.25
  5. Step 5: Solve for x
    x = 3,223,977,906.25/52,600.86
  6. Step 6: Final answer
    x = 61,291.35

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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.