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Finding the Fourth Proportional to 303,494.20, 455,241.30 and 161,776.60

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Solution

The fourth proportional to 303,494.20, 455,241.30 and 161,776.60 is: 242,664.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,494.20 : 455,241.30 = 161,776.60 : x
  2. Step 2: Convert to fraction form
    303,494.20/455,241.30 = 161,776.60/x
  3. Step 3: Cross multiply
    303,494.20x = 455,241.30 × 161,776.60
  4. Step 4: Simplify right side
    303,494.20x = 73,647,389,693.58
  5. Step 5: Solve for x
    x = 73,647,389,693.58/303,494.20
  6. Step 6: Final answer
    x = 242,664.90

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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.