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Finding the Fourth Proportional to 203,294.88, 280,683.86 and 126,930.24

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Solution

The fourth proportional to 203,294.88, 280,683.86 and 126,930.24 is: 175,249.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,294.88 : 280,683.86 = 126,930.24 : x
  2. Step 2: Convert to fraction form
    203,294.88/280,683.86 = 126,930.24/x
  3. Step 3: Cross multiply
    203,294.88x = 280,683.86 × 126,930.24
  4. Step 4: Simplify right side
    203,294.88x = 35,627,269,713.93
  5. Step 5: Solve for x
    x = 35,627,269,713.93/203,294.88
  6. Step 6: Final answer
    x = 175,249.22

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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.