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Finding the Fourth Proportional to 111,416.10, 166,866.69 and 66,944.82

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Solution

The fourth proportional to 111,416.10, 166,866.69 and 66,944.82 is: 100,262.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,416.10 : 166,866.69 = 66,944.82 : x
  2. Step 2: Convert to fraction form
    111,416.10/166,866.69 = 66,944.82/x
  3. Step 3: Cross multiply
    111,416.10x = 166,866.69 × 66,944.82
  4. Step 4: Simplify right side
    111,416.10x = 11,170,860,526.05
  5. Step 5: Solve for x
    x = 11,170,860,526.05/111,416.10
  6. Step 6: Final answer
    x = 100,262.53

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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.