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Finding the Fourth Proportional to 179,001.68, 268,619.31 and 66,771.68

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Solution

The fourth proportional to 179,001.68, 268,619.31 and 66,771.68 is: 100,201.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,001.68 : 268,619.31 = 66,771.68 : x
  2. Step 2: Convert to fraction form
    179,001.68/268,619.31 = 66,771.68/x
  3. Step 3: Cross multiply
    179,001.68x = 268,619.31 × 66,771.68
  4. Step 4: Simplify right side
    179,001.68x = 17,936,161,266.04
  5. Step 5: Solve for x
    x = 17,936,161,266.04/179,001.68
  6. Step 6: Final answer
    x = 100,201.08

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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.