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Finding the Fourth Proportional to 96,858.74, 145,287.89 and 25,781.39

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Solution

The fourth proportional to 96,858.74, 145,287.89 and 25,781.39 is: 38,672.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,858.74 : 145,287.89 = 25,781.39 : x
  2. Step 2: Convert to fraction form
    96,858.74/145,287.89 = 25,781.39/x
  3. Step 3: Cross multiply
    96,858.74x = 145,287.89 × 25,781.39
  4. Step 4: Simplify right side
    96,858.74x = 3,745,723,754.37
  5. Step 5: Solve for x
    x = 3,745,723,754.37/96,858.74
  6. Step 6: Final answer
    x = 38,672.03

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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.