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Finding the Fourth Proportional to 363,483.80, 545,186.82 and 126,830.96

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Solution

The fourth proportional to 363,483.80, 545,186.82 and 126,830.96 is: 190,232.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,483.80 : 545,186.82 = 126,830.96 : x
  2. Step 2: Convert to fraction form
    363,483.80/545,186.82 = 126,830.96/x
  3. Step 3: Cross multiply
    363,483.80x = 545,186.82 × 126,830.96
  4. Step 4: Simplify right side
    363,483.80x = 69,146,567,759.95
  5. Step 5: Solve for x
    x = 69,146,567,759.95/363,483.80
  6. Step 6: Final answer
    x = 190,232.87

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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.