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Finding the Fourth Proportional to 295,915.20, 443,654.10 and 162,945.60

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Solution

The fourth proportional to 295,915.20, 443,654.10 and 162,945.60 is: 244,297.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,915.20 : 443,654.10 = 162,945.60 : x
  2. Step 2: Convert to fraction form
    295,915.20/443,654.10 = 162,945.60/x
  3. Step 3: Cross multiply
    295,915.20x = 443,654.10 × 162,945.60
  4. Step 4: Simplify right side
    295,915.20x = 72,291,483,516.96
  5. Step 5: Solve for x
    x = 72,291,483,516.96/295,915.20
  6. Step 6: Final answer
    x = 244,297.97

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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.