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Finding the Fourth Proportional to 217,247.24, 299,800.50 and 126,656.84

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Solution

The fourth proportional to 217,247.24, 299,800.50 and 126,656.84 is: 174,786.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,247.24 : 299,800.50 = 126,656.84 : x
  2. Step 2: Convert to fraction form
    217,247.24/299,800.50 = 126,656.84/x
  3. Step 3: Cross multiply
    217,247.24x = 299,800.50 × 126,656.84
  4. Step 4: Simplify right side
    217,247.24x = 37,971,783,960.42
  5. Step 5: Solve for x
    x = 37,971,783,960.42/217,247.24
  6. Step 6: Final answer
    x = 174,786.04

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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.