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Finding the Fourth Proportional to 363,546.99, 545,074.45 and 126,760.50

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Solution

The fourth proportional to 363,546.99, 545,074.45 and 126,760.50 is: 190,054.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,546.99 : 545,074.45 = 126,760.50 : x
  2. Step 2: Convert to fraction form
    363,546.99/545,074.45 = 126,760.50/x
  3. Step 3: Cross multiply
    363,546.99x = 545,074.45 × 126,760.50
  4. Step 4: Simplify right side
    363,546.99x = 69,093,909,502.32
  5. Step 5: Solve for x
    x = 69,093,909,502.32/363,546.99
  6. Step 6: Final answer
    x = 190,054.96

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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.