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Finding the Fourth Proportional to 217,223.97, 299,803.85 and 126,632.96

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Solution

The fourth proportional to 217,223.97, 299,803.85 and 126,632.96 is: 174,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,223.97 : 299,803.85 = 126,632.96 : x
  2. Step 2: Convert to fraction form
    217,223.97/299,803.85 = 126,632.96/x
  3. Step 3: Cross multiply
    217,223.97x = 299,803.85 × 126,632.96
  4. Step 4: Simplify right side
    217,223.97x = 37,965,048,944.90
  5. Step 5: Solve for x
    x = 37,965,048,944.90/217,223.97
  6. Step 6: Final answer
    x = 174,773.76

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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.