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Finding the Fourth Proportional to 363,609.60, 545,414.40 and 164,155.20

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Solution

The fourth proportional to 363,609.60, 545,414.40 and 164,155.20 is: 246,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,609.60 : 545,414.40 = 164,155.20 : x
  2. Step 2: Convert to fraction form
    363,609.60/545,414.40 = 164,155.20/x
  3. Step 3: Cross multiply
    363,609.60x = 545,414.40 × 164,155.20
  4. Step 4: Simplify right side
    363,609.60x = 89,532,609,914.88
  5. Step 5: Solve for x
    x = 89,532,609,914.88/363,609.60
  6. Step 6: Final answer
    x = 246,232.80

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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.