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Finding the Fourth Proportional to 293,638.60, 440,603.70 and 167,375.80

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Solution

The fourth proportional to 293,638.60, 440,603.70 and 167,375.80 is: 251,146.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,638.60 : 440,603.70 = 167,375.80 : x
  2. Step 2: Convert to fraction form
    293,638.60/440,603.70 = 167,375.80/x
  3. Step 3: Cross multiply
    293,638.60x = 440,603.70 × 167,375.80
  4. Step 4: Simplify right side
    293,638.60x = 73,746,396,770.46
  5. Step 5: Solve for x
    x = 73,746,396,770.46/293,638.60
  6. Step 6: Final answer
    x = 251,146.81

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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.