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Finding the Fourth Proportional to 363,998.80, 545,868.60 and 164,414.80

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Solution

The fourth proportional to 363,998.80, 545,868.60 and 164,414.80 is: 246,563.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,998.80 : 545,868.60 = 164,414.80 : x
  2. Step 2: Convert to fraction form
    363,998.80/545,868.60 = 164,414.80/x
  3. Step 3: Cross multiply
    363,998.80x = 545,868.60 × 164,414.80
  4. Step 4: Simplify right side
    363,998.80x = 89,748,876,695.28
  5. Step 5: Solve for x
    x = 89,748,876,695.28/363,998.80
  6. Step 6: Final answer
    x = 246,563.66

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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.