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Finding the Fourth Proportional to 363,590.22, 545,634.46 and 126,932.90

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Solution

The fourth proportional to 363,590.22, 545,634.46 and 126,932.90 is: 190,486.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,590.22 : 545,634.46 = 126,932.90 : x
  2. Step 2: Convert to fraction form
    363,590.22/545,634.46 = 126,932.90/x
  3. Step 3: Cross multiply
    363,590.22x = 545,634.46 × 126,932.90
  4. Step 4: Simplify right side
    363,590.22x = 69,258,964,347.73
  5. Step 5: Solve for x
    x = 69,258,964,347.73/363,590.22
  6. Step 6: Final answer
    x = 190,486.32

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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.