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Finding the Fourth Proportional to 167,903.55, 251,853.80 and 68,040

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Solution

The fourth proportional to 167,903.55, 251,853.80 and 68,040 is: 102,059.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,903.55 : 251,853.80 = 68,040 : x
  2. Step 2: Convert to fraction form
    167,903.55/251,853.80 = 68,040/x
  3. Step 3: Cross multiply
    167,903.55x = 251,853.80 × 68,040
  4. Step 4: Simplify right side
    167,903.55x = 17,136,132,211.80
  5. Step 5: Solve for x
    x = 17,136,132,211.80/167,903.55
  6. Step 6: Final answer
    x = 102,059.38

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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.