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Finding the Fourth Proportional to 78,745.96, 118,052.04 and 36,650.49

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Solution

The fourth proportional to 78,745.96, 118,052.04 and 36,650.49 is: 54,944.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,745.96 : 118,052.04 = 36,650.49 : x
  2. Step 2: Convert to fraction form
    78,745.96/118,052.04 = 36,650.49/x
  3. Step 3: Cross multiply
    78,745.96x = 118,052.04 × 36,650.49
  4. Step 4: Simplify right side
    78,745.96x = 4,326,665,111.50
  5. Step 5: Solve for x
    x = 4,326,665,111.50/78,745.96
  6. Step 6: Final answer
    x = 54,944.60

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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.