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Finding the Fourth Proportional to 363,486.30, 545,190.56 and 126,833.46

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Solution

The fourth proportional to 363,486.30, 545,190.56 and 126,833.46 is: 190,236.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,486.30 : 545,190.56 = 126,833.46 : x
  2. Step 2: Convert to fraction form
    363,486.30/545,190.56 = 126,833.46/x
  3. Step 3: Cross multiply
    363,486.30x = 545,190.56 × 126,833.46
  4. Step 4: Simplify right side
    363,486.30x = 69,148,405,084.14
  5. Step 5: Solve for x
    x = 69,148,405,084.14/363,486.30
  6. Step 6: Final answer
    x = 190,236.62

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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.