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Finding the Fourth Proportional to 363,498.20, 545,333.70 and 153,027.80

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Solution

The fourth proportional to 363,498.20, 545,333.70 and 153,027.80 is: 229,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,498.20 : 545,333.70 = 153,027.80 : x
  2. Step 2: Convert to fraction form
    363,498.20/545,333.70 = 153,027.80/x
  3. Step 3: Cross multiply
    363,498.20x = 545,333.70 × 153,027.80
  4. Step 4: Simplify right side
    363,498.20x = 83,451,216,376.86
  5. Step 5: Solve for x
    x = 83,451,216,376.86/363,498.20
  6. Step 6: Final answer
    x = 229,578.07

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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.