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Finding the Fourth Proportional to 111,270.88, 166,916.58 and 36,391.42

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Solution

The fourth proportional to 111,270.88, 166,916.58 and 36,391.42 is: 54,590.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,270.88 : 166,916.58 = 36,391.42 : x
  2. Step 2: Convert to fraction form
    111,270.88/166,916.58 = 36,391.42/x
  3. Step 3: Cross multiply
    111,270.88x = 166,916.58 × 36,391.42
  4. Step 4: Simplify right side
    111,270.88x = 6,074,331,367.74
  5. Step 5: Solve for x
    x = 6,074,331,367.74/111,270.88
  6. Step 6: Final answer
    x = 54,590.49

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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.