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Finding the Fourth Proportional to 126,480.38, 174,542.99 and 69,891.76

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Solution

The fourth proportional to 126,480.38, 174,542.99 and 69,891.76 is: 96,450.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,480.38 : 174,542.99 = 69,891.76 : x
  2. Step 2: Convert to fraction form
    126,480.38/174,542.99 = 69,891.76/x
  3. Step 3: Cross multiply
    126,480.38x = 174,542.99 × 69,891.76
  4. Step 4: Simplify right side
    126,480.38x = 12,199,116,723.31
  5. Step 5: Solve for x
    x = 12,199,116,723.31/126,480.38
  6. Step 6: Final answer
    x = 96,450.66

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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.