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Finding the Fourth Proportional to 193,988.97, 267,693.39 and 107,945.10

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Solution

The fourth proportional to 193,988.97, 267,693.39 and 107,945.10 is: 148,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,988.97 : 267,693.39 = 107,945.10 : x
  2. Step 2: Convert to fraction form
    193,988.97/267,693.39 = 107,945.10/x
  3. Step 3: Cross multiply
    193,988.97x = 267,693.39 × 107,945.10
  4. Step 4: Simplify right side
    193,988.97x = 28,896,189,752.89
  5. Step 5: Solve for x
    x = 28,896,189,752.89/193,988.97
  6. Step 6: Final answer
    x = 148,957.90

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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.