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Finding the Fourth Proportional to 363,559.89, 545,588.97 and 126,902.60

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Solution

The fourth proportional to 363,559.89, 545,588.97 and 126,902.60 is: 190,440.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,559.89 : 545,588.97 = 126,902.60 : x
  2. Step 2: Convert to fraction form
    363,559.89/545,588.97 = 126,902.60/x
  3. Step 3: Cross multiply
    363,559.89x = 545,588.97 × 126,902.60
  4. Step 4: Simplify right side
    363,559.89x = 69,236,657,666.45
  5. Step 5: Solve for x
    x = 69,236,657,666.45/363,559.89
  6. Step 6: Final answer
    x = 190,440.86

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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.