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Finding the Fourth Proportional to 269,679.81, 372,019.16 and 167,666.59

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Solution

The fourth proportional to 269,679.81, 372,019.16 and 167,666.59 is: 231,293.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,679.81 : 372,019.16 = 167,666.59 : x
  2. Step 2: Convert to fraction form
    269,679.81/372,019.16 = 167,666.59/x
  3. Step 3: Cross multiply
    269,679.81x = 372,019.16 × 167,666.59
  4. Step 4: Simplify right side
    269,679.81x = 62,375,183,971.86
  5. Step 5: Solve for x
    x = 62,375,183,971.86/269,679.81
  6. Step 6: Final answer
    x = 231,293.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.