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Finding the Fourth Proportional to 126,797.81, 174,978.83 and 70,207.97

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Solution

The fourth proportional to 126,797.81, 174,978.83 and 70,207.97 is: 96,885.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,797.81 : 174,978.83 = 70,207.97 : x
  2. Step 2: Convert to fraction form
    126,797.81/174,978.83 = 70,207.97/x
  3. Step 3: Cross multiply
    126,797.81x = 174,978.83 × 70,207.97
  4. Step 4: Simplify right side
    126,797.81x = 12,284,907,747.90
  5. Step 5: Solve for x
    x = 12,284,907,747.90/126,797.81
  6. Step 6: Final answer
    x = 96,885.81

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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.