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Finding the Fourth Proportional to 363,485.32, 545,189.07 and 126,832.48

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Solution

The fourth proportional to 363,485.32, 545,189.07 and 126,832.48 is: 190,235.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,485.32 : 545,189.07 = 126,832.48 : x
  2. Step 2: Convert to fraction form
    363,485.32/545,189.07 = 126,832.48/x
  3. Step 3: Cross multiply
    363,485.32x = 545,189.07 × 126,832.48
  4. Step 4: Simplify right side
    363,485.32x = 69,147,681,816.99
  5. Step 5: Solve for x
    x = 69,147,681,816.99/363,485.32
  6. Step 6: Final answer
    x = 190,235.14

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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.