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Finding the Fourth Proportional to 110,019.97, 165,029.94 and 60,072.82

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Solution

The fourth proportional to 110,019.97, 165,029.94 and 60,072.82 is: 90,109.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,019.97 : 165,029.94 = 60,072.82 : x
  2. Step 2: Convert to fraction form
    110,019.97/165,029.94 = 60,072.82/x
  3. Step 3: Cross multiply
    110,019.97x = 165,029.94 × 60,072.82
  4. Step 4: Simplify right side
    110,019.97x = 9,913,813,880.23
  5. Step 5: Solve for x
    x = 9,913,813,880.23/110,019.97
  6. Step 6: Final answer
    x = 90,109.22

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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.