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Finding the Fourth Proportional to 367,615.40, 551,423.10 and 118,297.40

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Solution

The fourth proportional to 367,615.40, 551,423.10 and 118,297.40 is: 177,446.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,615.40 : 551,423.10 = 118,297.40 : x
  2. Step 2: Convert to fraction form
    367,615.40/551,423.10 = 118,297.40/x
  3. Step 3: Cross multiply
    367,615.40x = 551,423.10 × 118,297.40
  4. Step 4: Simplify right side
    367,615.40x = 65,231,919,029.94
  5. Step 5: Solve for x
    x = 65,231,919,029.94/367,615.40
  6. Step 6: Final answer
    x = 177,446.10

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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.