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Finding the Fourth Proportional to 363,561.39, 545,591.22 and 126,904.10

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Solution

The fourth proportional to 363,561.39, 545,591.22 and 126,904.10 is: 190,443.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,561.39 : 545,591.22 = 126,904.10 : x
  2. Step 2: Convert to fraction form
    363,561.39/545,591.22 = 126,904.10/x
  3. Step 3: Cross multiply
    363,561.39x = 545,591.22 × 126,904.10
  4. Step 4: Simplify right side
    363,561.39x = 69,237,760,014.05
  5. Step 5: Solve for x
    x = 69,237,760,014.05/363,561.39
  6. Step 6: Final answer
    x = 190,443.11

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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.