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Finding the Fourth Proportional to 167,718.40, 251,869.20 and 88,986.40

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Solution

The fourth proportional to 167,718.40, 251,869.20 and 88,986.40 is: 133,634.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,718.40 : 251,869.20 = 88,986.40 : x
  2. Step 2: Convert to fraction form
    167,718.40/251,869.20 = 88,986.40/x
  3. Step 3: Cross multiply
    167,718.40x = 251,869.20 × 88,986.40
  4. Step 4: Simplify right side
    167,718.40x = 22,412,933,378.88
  5. Step 5: Solve for x
    x = 22,412,933,378.88/167,718.40
  6. Step 6: Final answer
    x = 133,634.31

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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.