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Finding the Fourth Proportional to 363,416.20, 545,124.30 and 251,441.80

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Solution

The fourth proportional to 363,416.20, 545,124.30 and 251,441.80 is: 377,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,416.20 : 545,124.30 = 251,441.80 : x
  2. Step 2: Convert to fraction form
    363,416.20/545,124.30 = 251,441.80/x
  3. Step 3: Cross multiply
    363,416.20x = 545,124.30 × 251,441.80
  4. Step 4: Simplify right side
    363,416.20x = 137,067,035,215.74
  5. Step 5: Solve for x
    x = 137,067,035,215.74/363,416.20
  6. Step 6: Final answer
    x = 377,162.70

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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.