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Finding the Fourth Proportional to 166,852.67, 250,167.80 and 86,693.65

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Solution

The fourth proportional to 166,852.67, 250,167.80 and 86,693.65 is: 129,982.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,852.67 : 250,167.80 = 86,693.65 : x
  2. Step 2: Convert to fraction form
    166,852.67/250,167.80 = 86,693.65/x
  3. Step 3: Cross multiply
    166,852.67x = 250,167.80 × 86,693.65
  4. Step 4: Simplify right side
    166,852.67x = 21,687,958,010.16
  5. Step 5: Solve for x
    x = 21,687,958,010.16/166,852.67
  6. Step 6: Final answer
    x = 129,982.69

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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.