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Finding the Fourth Proportional to 166,978.45, 249,975.60 and 110,881.90

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Solution

The fourth proportional to 166,978.45, 249,975.60 and 110,881.90 is: 165,996.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,978.45 : 249,975.60 = 110,881.90 : x
  2. Step 2: Convert to fraction form
    166,978.45/249,975.60 = 110,881.90/x
  3. Step 3: Cross multiply
    166,978.45x = 249,975.60 × 110,881.90
  4. Step 4: Simplify right side
    166,978.45x = 27,717,769,481.64
  5. Step 5: Solve for x
    x = 27,717,769,481.64/166,978.45
  6. Step 6: Final answer
    x = 165,996.09

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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.