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Finding the Fourth Proportional to 111,616, 167,281.62 and 52,321.03

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Solution

The fourth proportional to 111,616, 167,281.62 and 52,321.03 is: 78,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,616 : 167,281.62 = 52,321.03 : x
  2. Step 2: Convert to fraction form
    111,616/167,281.62 = 52,321.03/x
  3. Step 3: Cross multiply
    111,616x = 167,281.62 × 52,321.03
  4. Step 4: Simplify right side
    111,616x = 8,752,346,658.47
  5. Step 5: Solve for x
    x = 8,752,346,658.47/111,616
  6. Step 6: Final answer
    x = 78,414.80

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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.