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Finding the Fourth Proportional to 228,757.92, 315,698.46 and 126,781.22

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Solution

The fourth proportional to 228,757.92, 315,698.46 and 126,781.22 is: 174,965.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,757.92 : 315,698.46 = 126,781.22 : x
  2. Step 2: Convert to fraction form
    228,757.92/315,698.46 = 126,781.22/x
  3. Step 3: Cross multiply
    228,757.92x = 315,698.46 × 126,781.22
  4. Step 4: Simplify right side
    228,757.92x = 40,024,634,332.43
  5. Step 5: Solve for x
    x = 40,024,634,332.43/228,757.92
  6. Step 6: Final answer
    x = 174,965.02

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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.