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Finding the Fourth Proportional to 363,729.87, 545,595.89 and 127,072.58

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Solution

The fourth proportional to 363,729.87, 545,595.89 and 127,072.58 is: 190,609.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,729.87 : 545,595.89 = 127,072.58 : x
  2. Step 2: Convert to fraction form
    363,729.87/545,595.89 = 127,072.58/x
  3. Step 3: Cross multiply
    363,729.87x = 545,595.89 × 127,072.58
  4. Step 4: Simplify right side
    363,729.87x = 69,330,274,016.35
  5. Step 5: Solve for x
    x = 69,330,274,016.35/363,729.87
  6. Step 6: Final answer
    x = 190,609.24

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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.