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Finding the Fourth Proportional to 111,248.67, 166,805.71 and 43,699.84

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Solution

The fourth proportional to 111,248.67, 166,805.71 and 43,699.84 is: 65,523.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,248.67 : 166,805.71 = 43,699.84 : x
  2. Step 2: Convert to fraction form
    111,248.67/166,805.71 = 43,699.84/x
  3. Step 3: Cross multiply
    111,248.67x = 166,805.71 × 43,699.84
  4. Step 4: Simplify right side
    111,248.67x = 7,289,382,311.82
  5. Step 5: Solve for x
    x = 7,289,382,311.82/111,248.67
  6. Step 6: Final answer
    x = 65,523.32

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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.