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Finding the Fourth Proportional to 110,743.60, 166,139.70 and 54,610.60

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Solution

The fourth proportional to 110,743.60, 166,139.70 and 54,610.60 is: 81,927.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,743.60 : 166,139.70 = 54,610.60 : x
  2. Step 2: Convert to fraction form
    110,743.60/166,139.70 = 54,610.60/x
  3. Step 3: Cross multiply
    110,743.60x = 166,139.70 × 54,610.60
  4. Step 4: Simplify right side
    110,743.60x = 9,072,988,700.82
  5. Step 5: Solve for x
    x = 9,072,988,700.82/110,743.60
  6. Step 6: Final answer
    x = 81,927.88

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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.