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Finding the Fourth Proportional to 367,628.10, 551,442.15 and 157,287.30

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Solution

The fourth proportional to 367,628.10, 551,442.15 and 157,287.30 is: 235,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,628.10 : 551,442.15 = 157,287.30 : x
  2. Step 2: Convert to fraction form
    367,628.10/551,442.15 = 157,287.30/x
  3. Step 3: Cross multiply
    367,628.10x = 551,442.15 × 157,287.30
  4. Step 4: Simplify right side
    367,628.10x = 86,734,846,879.70
  5. Step 5: Solve for x
    x = 86,734,846,879.70/367,628.10
  6. Step 6: Final answer
    x = 235,930.95

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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.