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Finding the Fourth Proportional to 126,493.62, 174,559.59 and 69,903.78

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Solution

The fourth proportional to 126,493.62, 174,559.59 and 69,903.78 is: 96,466.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,493.62 : 174,559.59 = 69,903.78 : x
  2. Step 2: Convert to fraction form
    126,493.62/174,559.59 = 69,903.78/x
  3. Step 3: Cross multiply
    126,493.62x = 174,559.59 × 69,903.78
  4. Step 4: Simplify right side
    126,493.62x = 12,202,375,176.25
  5. Step 5: Solve for x
    x = 12,202,375,176.25/126,493.62
  6. Step 6: Final answer
    x = 96,466.33

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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.