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Finding the Fourth Proportional to 111,248.63, 166,805.67 and 43,699.80

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Solution

The fourth proportional to 111,248.63, 166,805.67 and 43,699.80 is: 65,523.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,248.63 : 166,805.67 = 43,699.80 : x
  2. Step 2: Convert to fraction form
    111,248.63/166,805.67 = 43,699.80/x
  3. Step 3: Cross multiply
    111,248.63x = 166,805.67 × 43,699.80
  4. Step 4: Simplify right side
    111,248.63x = 7,289,374,417.87
  5. Step 5: Solve for x
    x = 7,289,374,417.87/111,248.63
  6. Step 6: Final answer
    x = 65,523.27

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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.