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Finding the Fourth Proportional to 126,344.56, 174,351 and 69,755.80

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Solution

The fourth proportional to 126,344.56, 174,351 and 69,755.80 is: 96,260.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,344.56 : 174,351 = 69,755.80 : x
  2. Step 2: Convert to fraction form
    126,344.56/174,351 = 69,755.80/x
  3. Step 3: Cross multiply
    126,344.56x = 174,351 × 69,755.80
  4. Step 4: Simplify right side
    126,344.56x = 12,161,993,485.80
  5. Step 5: Solve for x
    x = 12,161,993,485.80/126,344.56
  6. Step 6: Final answer
    x = 96,260.52

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1.5x scale

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.