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Finding the Fourth Proportional to 367,442.30, 551,213.67 and 130,727.90

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Solution

The fourth proportional to 367,442.30, 551,213.67 and 130,727.90 is: 196,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,442.30 : 551,213.67 = 130,727.90 : x
  2. Step 2: Convert to fraction form
    367,442.30/551,213.67 = 130,727.90/x
  3. Step 3: Cross multiply
    367,442.30x = 551,213.67 × 130,727.90
  4. Step 4: Simplify right side
    367,442.30x = 72,059,005,530.39
  5. Step 5: Solve for x
    x = 72,059,005,530.39/367,442.30
  6. Step 6: Final answer
    x = 196,109.72

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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.