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Finding the Fourth Proportional to 101,238.40, 151,857.60 and 53,999.20

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Solution

The fourth proportional to 101,238.40, 151,857.60 and 53,999.20 is: 80,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,238.40 : 151,857.60 = 53,999.20 : x
  2. Step 2: Convert to fraction form
    101,238.40/151,857.60 = 53,999.20/x
  3. Step 3: Cross multiply
    101,238.40x = 151,857.60 × 53,999.20
  4. Step 4: Simplify right side
    101,238.40x = 8,200,188,913.92
  5. Step 5: Solve for x
    x = 8,200,188,913.92/101,238.40
  6. Step 6: Final answer
    x = 80,998.80

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1.5x scale

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.