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Finding the Fourth Proportional to 101,091.60, 151,762.20 and 63,651.60

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Solution

The fourth proportional to 101,091.60, 151,762.20 and 63,651.60 is: 95,555.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,091.60 : 151,762.20 = 63,651.60 : x
  2. Step 2: Convert to fraction form
    101,091.60/151,762.20 = 63,651.60/x
  3. Step 3: Cross multiply
    101,091.60x = 151,762.20 × 63,651.60
  4. Step 4: Simplify right side
    101,091.60x = 9,659,906,849.52
  5. Step 5: Solve for x
    x = 9,659,906,849.52/101,091.60
  6. Step 6: Final answer
    x = 95,555.98

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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.