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Finding the Fourth Proportional to 98,105.82, 135,411.92 and 57,846.39

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Solution

The fourth proportional to 98,105.82, 135,411.92 and 57,846.39 is: 79,843.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,105.82 : 135,411.92 = 57,846.39 : x
  2. Step 2: Convert to fraction form
    98,105.82/135,411.92 = 57,846.39/x
  3. Step 3: Cross multiply
    98,105.82x = 135,411.92 × 57,846.39
  4. Step 4: Simplify right side
    98,105.82x = 7,833,090,445.74
  5. Step 5: Solve for x
    x = 7,833,090,445.74/98,105.82
  6. Step 6: Final answer
    x = 79,843.28

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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.