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Finding the Fourth Proportional to 85,500.92, 117,962.38 and 49,661.46

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Solution

The fourth proportional to 85,500.92, 117,962.38 and 49,661.46 is: 68,516.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,500.92 : 117,962.38 = 49,661.46 : x
  2. Step 2: Convert to fraction form
    85,500.92/117,962.38 = 49,661.46/x
  3. Step 3: Cross multiply
    85,500.92x = 117,962.38 × 49,661.46
  4. Step 4: Simplify right side
    85,500.92x = 5,858,184,015.87
  5. Step 5: Solve for x
    x = 5,858,184,015.87/85,500.92
  6. Step 6: Final answer
    x = 68,516.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.