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Finding the Fourth Proportional to 363,635.80, 545,064.90 and 163,922.20

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Solution

The fourth proportional to 363,635.80, 545,064.90 and 163,922.20 is: 245,708.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,635.80 : 545,064.90 = 163,922.20 : x
  2. Step 2: Convert to fraction form
    363,635.80/545,064.90 = 163,922.20/x
  3. Step 3: Cross multiply
    363,635.80x = 545,064.90 × 163,922.20
  4. Step 4: Simplify right side
    363,635.80x = 89,348,237,550.78
  5. Step 5: Solve for x
    x = 89,348,237,550.78/363,635.80
  6. Step 6: Final answer
    x = 245,708.03

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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.