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Finding the Fourth Proportional to 108,512.61, 149,754.52 and 60,769.04

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Solution

The fourth proportional to 108,512.61, 149,754.52 and 60,769.04 is: 83,865.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,512.61 : 149,754.52 = 60,769.04 : x
  2. Step 2: Convert to fraction form
    108,512.61/149,754.52 = 60,769.04/x
  3. Step 3: Cross multiply
    108,512.61x = 149,754.52 × 60,769.04
  4. Step 4: Simplify right side
    108,512.61x = 9,100,437,743.25
  5. Step 5: Solve for x
    x = 9,100,437,743.25/108,512.61
  6. Step 6: Final answer
    x = 83,865.25

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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.