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Finding the Fourth Proportional to 207,259.56, 286,040.34 and 126,734.28

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Solution

The fourth proportional to 207,259.56, 286,040.34 and 126,734.28 is: 174,906.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,259.56 : 286,040.34 = 126,734.28 : x
  2. Step 2: Convert to fraction form
    207,259.56/286,040.34 = 126,734.28/x
  3. Step 3: Cross multiply
    207,259.56x = 286,040.34 × 126,734.28
  4. Step 4: Simplify right side
    207,259.56x = 36,251,116,540.86
  5. Step 5: Solve for x
    x = 36,251,116,540.86/207,259.56
  6. Step 6: Final answer
    x = 174,906.85

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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.