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Finding the Fourth Proportional to 95,239.80, 142,626.42 and 67,090.68

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Solution

The fourth proportional to 95,239.80, 142,626.42 and 67,090.68 is: 100,471.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,239.80 : 142,626.42 = 67,090.68 : x
  2. Step 2: Convert to fraction form
    95,239.80/142,626.42 = 67,090.68/x
  3. Step 3: Cross multiply
    95,239.80x = 142,626.42 × 67,090.68
  4. Step 4: Simplify right side
    95,239.80x = 9,568,903,503.77
  5. Step 5: Solve for x
    x = 9,568,903,503.77/95,239.80
  6. Step 6: Final answer
    x = 100,471.69

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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.