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Finding the Fourth Proportional to 126,503.56, 174,568.09 and 69,911.56

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Solution

The fourth proportional to 126,503.56, 174,568.09 and 69,911.56 is: 96,474.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,503.56 : 174,568.09 = 69,911.56 : x
  2. Step 2: Convert to fraction form
    126,503.56/174,568.09 = 69,911.56/x
  3. Step 3: Cross multiply
    126,503.56x = 174,568.09 × 69,911.56
  4. Step 4: Simplify right side
    126,503.56x = 12,204,326,275.72
  5. Step 5: Solve for x
    x = 12,204,326,275.72/126,503.56
  6. Step 6: Final answer
    x = 96,474.18

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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.