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Finding the Fourth Proportional to 98,392.73, 135,846.11 and 75,689.84

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Solution

The fourth proportional to 98,392.73, 135,846.11 and 75,689.84 is: 104,501.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,392.73 : 135,846.11 = 75,689.84 : x
  2. Step 2: Convert to fraction form
    98,392.73/135,846.11 = 75,689.84/x
  3. Step 3: Cross multiply
    98,392.73x = 135,846.11 × 75,689.84
  4. Step 4: Simplify right side
    98,392.73x = 10,282,170,859.36
  5. Step 5: Solve for x
    x = 10,282,170,859.36/98,392.73
  6. Step 6: Final answer
    x = 104,501.33

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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.