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Finding the Fourth Proportional to 363,427.20, 544,946.40 and 126,777.60

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Solution

The fourth proportional to 363,427.20, 544,946.40 and 126,777.60 is: 190,098.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,427.20 : 544,946.40 = 126,777.60 : x
  2. Step 2: Convert to fraction form
    363,427.20/544,946.40 = 126,777.60/x
  3. Step 3: Cross multiply
    363,427.20x = 544,946.40 × 126,777.60
  4. Step 4: Simplify right side
    363,427.20x = 69,086,996,720.64
  5. Step 5: Solve for x
    x = 69,086,996,720.64/363,427.20
  6. Step 6: Final answer
    x = 190,098.59

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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.