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Finding the Fourth Proportional to 101,312.37, 151,923.94 and 53,916.03

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Solution

The fourth proportional to 101,312.37, 151,923.94 and 53,916.03 is: 80,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,312.37 : 151,923.94 = 53,916.03 : x
  2. Step 2: Convert to fraction form
    101,312.37/151,923.94 = 53,916.03/x
  3. Step 3: Cross multiply
    101,312.37x = 151,923.94 × 53,916.03
  4. Step 4: Simplify right side
    101,312.37x = 8,191,135,571.97
  5. Step 5: Solve for x
    x = 8,191,135,571.97/101,312.37
  6. Step 6: Final answer
    x = 80,850.30

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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.