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Finding the Fourth Proportional to 295,628.60, 443,442.90 and 127,229.60

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Solution

The fourth proportional to 295,628.60, 443,442.90 and 127,229.60 is: 190,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,628.60 : 443,442.90 = 127,229.60 : x
  2. Step 2: Convert to fraction form
    295,628.60/443,442.90 = 127,229.60/x
  3. Step 3: Cross multiply
    295,628.60x = 443,442.90 × 127,229.60
  4. Step 4: Simplify right side
    295,628.60x = 56,419,062,789.84
  5. Step 5: Solve for x
    x = 56,419,062,789.84/295,628.60
  6. Step 6: Final answer
    x = 190,844.40

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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.