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Finding the Fourth Proportional to 363,105.20, 544,074.60 and 238,300.40

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Solution

The fourth proportional to 363,105.20, 544,074.60 and 238,300.40 is: 357,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,105.20 : 544,074.60 = 238,300.40 : x
  2. Step 2: Convert to fraction form
    363,105.20/544,074.60 = 238,300.40/x
  3. Step 3: Cross multiply
    363,105.20x = 544,074.60 × 238,300.40
  4. Step 4: Simplify right side
    363,105.20x = 129,653,194,809.84
  5. Step 5: Solve for x
    x = 129,653,194,809.84/363,105.20
  6. Step 6: Final answer
    x = 357,067.85

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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.