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Finding the Fourth Proportional to 98,372.54, 135,761.54 and 60,139.33

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Solution

The fourth proportional to 98,372.54, 135,761.54 and 60,139.33 is: 82,996.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,372.54 : 135,761.54 = 60,139.33 : x
  2. Step 2: Convert to fraction form
    98,372.54/135,761.54 = 60,139.33/x
  3. Step 3: Cross multiply
    98,372.54x = 135,761.54 × 60,139.33
  4. Step 4: Simplify right side
    98,372.54x = 8,164,607,415.27
  5. Step 5: Solve for x
    x = 8,164,607,415.27/98,372.54
  6. Step 6: Final answer
    x = 82,996.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.