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Finding the Fourth Proportional to 111,166.98, 166,624.11 and 51,991.62

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Solution

The fourth proportional to 111,166.98, 166,624.11 and 51,991.62 is: 77,928.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,166.98 : 166,624.11 = 51,991.62 : x
  2. Step 2: Convert to fraction form
    111,166.98/166,624.11 = 51,991.62/x
  3. Step 3: Cross multiply
    111,166.98x = 166,624.11 × 51,991.62
  4. Step 4: Simplify right side
    111,166.98x = 8,663,057,409.96
  5. Step 5: Solve for x
    x = 8,663,057,409.96/111,166.98
  6. Step 6: Final answer
    x = 77,928.33

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1.5x scale

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.