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Finding the Fourth Proportional to 108,734.45, 150,053.81 and 63,443.57

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Solution

The fourth proportional to 108,734.45, 150,053.81 and 63,443.57 is: 87,552.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,734.45 : 150,053.81 = 63,443.57 : x
  2. Step 2: Convert to fraction form
    108,734.45/150,053.81 = 63,443.57/x
  3. Step 3: Cross multiply
    108,734.45x = 150,053.81 × 63,443.57
  4. Step 4: Simplify right side
    108,734.45x = 9,519,948,331.01
  5. Step 5: Solve for x
    x = 9,519,948,331.01/108,734.45
  6. Step 6: Final answer
    x = 87,552.28

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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.